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An ISO image file is an exact representation of a CD, DVD or Blu-Ray Disc in a single archive file, these files are either downloaded online or created through an ISO image file app such as ImgBurn, BurnAware, ISODisk, ISO Recorder or other ISO image file creation apps. After creating or downloading ISO image file you can then mount it on a virtual CD/DVD drive as if it’s a real disc or burn it to disc and use it in replace of your original disc
If you often visit YouTube to watch online videos then you probably want to view it offline too or want to view it on other devices such as your phone. You want to view YouTube video offline especially if you have a very slow internet connection at home or want to view the video in HD format. Unfortunately, YouTube is designed to be viewed or watched on their website and not to be downloaded, that’s why you can’t find any download link for downloading videos on YouTube. Fortunately for us there are lots of software and websites that we can use as a downloader for YouTube videos.
Saving YouTube Video Using Online YouTube Download site
There are websites that caters in downloading YouTube video, all you have to do is copy the video URL and paste it on their download bar then clicking on the download button. To download video from YouTube follow these simple steps.
- Go to YouTube and play the video you want to download, copy the video URL from the YouTube webpage address bar as shown in the sample below.
- Go to saveFrom.net and paste the YouTube video URL on the download bar and click on the download button, after clicking the download button you will be shown with available video format that you can select from as the video format to save such as FLV, MP4, 3GP and other video format. Click on the Video format you want on the Download link column and select where you want to save your video download.
Aside from online YouTube download site, you can also download YouTube downloader software and install it on your computer, during installation watch out for any attempt to install toolbars by the installer. You can uncheck any checkbox that wants you to install toolbar that can possibly change your default search page.
Free YouTube Downloader
Free YouTube Downloader is a free tool that will let you download YouTube video. To install the app you have to visit Free YouTube Downloader website and download the app. After Installing the app all you have to do is copy the YouTube video URL from youtube.com and paste it on the YouTube URL box downloader then select the output format such as MP4, FLV, Xvid or other video format you want. You can also download video as an mp3 audio instead of video format.
YTD Video Downloader
YTD Video Downloader is also a free tool for downloading video from YouTube, but if you want additional functionality of YTD Video Downloader such as automatic conversion of video and want to download multiple videos simultaneously then you have to upgrade the software to PRO version. The basic free functionality of the software is good enough for you to download videos unless you want additional downloading functionality then upgrade to PRO version. Downloading video in YTD YouTube Downloader is almost the same with any other video downloader all you have to do is copy the video URL from YouTube and paste it in the Paste URL box then click on download.
How to download YouTube Video using YTD video downloader
After downloading your video from YouTube try VLC Media Player to play your videosbecause this software support almost all video format.
When a windows server family is freshly installed on a computer it first work as a client computer or a standalone server. When you have a standalone server you can promote it as a domain controller by installing Active Directory Services (ADS) or Active Directory Domain Services (AD DS) on a windows server 2003/2008 operating system respectively. By promoting a standalone server to a domain controller it then allows administrator to manage the entire network such as adding user accounts and client computers from a central location such as the windows server terminal.
If you work as a system administrator or a network administrator promoting a windows server machine is a common task.
Before Promoting Your Windows Server 2008
The server the administrator plan to promote must have a static IP address assigned to its Network Interface Card.
To begin promoting a computer with windows server 2008 installed to a domain controller.
Log in to Windows server 2008 with administrator account
Click on the Start Menu and type dcpromo on the Search box and press the enter key.
Wait for the Active Directory Domain Services Installation Wizard to load.
On the Operating System Compatibility window click on the next button.
Select Create a new domain in a new forest radio button if the computer your installing the Active Directory Domain Services is the only domain controller in the network or select Existing forest radio button if there are other domain controller in the network.
On the “Name the Forest Root Domain” type the name of the new domain in the text box and click on the next button.
On the “Set Forest Functional Level” leave the default value as is, click on the next button to continue.
On the “Set Domain Functional Level” leave the default value as is and click on the next button to continue.
On the “Additional Domain Controller Options” make sure that DNS server checkbox is checked, click on the next button continue.
If for instance you have not assigned a static IP address on your Network Interface Card you’ll be prompted with the Static IP Assignment message box. Click on “No, I will assign static IP addresses to all physical network adapter” to manually assign static IP address to all network card but you have to restart Active Directory Domain Services Installation Wizard again. If you have already assigned static IP to all the network interface card you will not be prompted with this message.
Click Yes button to continue when the DNS warning box appear.
Select Database location, log file, and SYSVOL folder location in the field or leave the default as is, I recommend leaving the default value as is.
On the “Directory Services Restore Mode Administrator Password” type in your desired password on the Password and Confirm password box and click on the Next button to continue. This password will be used for restoring the Active Directory from backup in case of disaster
On the Summary windows review your current settings, when you click the Next button these settings will be applied to the Domain Controller. Click on the Next button to start the Active Directory Domain Controller Services installation process.
On the installation progress box check on the Reboot on Completion check box to automatically reboot Windows server 2008 machine when installation is completed successfully.
Active Directory Domain Services Installation Wizard in progress
Installation of Active Directory Domain Services is complete after Windows server 2008 restart
Configuring a DHCP server on your Windows 2008 server will allow you to configure client computer network setting at the DHCP server provided that the client computer is set to obtain an IP address automatically.
Before beginning to configure your DHCP server verify that:
The computer you want to configure DHCP has a static IP address assigned to it.
All existing disk volume on your server uses NTFS file system, NTFS file system are more secure than FAT32 file system since FAT32 don’t support file and folder compression, disk quotas, and file encryption.
Updated Windows Server 2008.
To begin configuring your Windows 2008 DHCP server
Click on Start then click on Administrative Tools and finally click on Server Manager.
Windows Server 2008 Administrative Tools
On the Server Manager Window right click on Role and then select Add Roles
On the Before You Begin Window click on Next button to continue
On the Add Roles Wizard Window check DHCP Server checkbox and click on the Next button to continue
On the Select Network Connection Bindings Window check the network connection to bind by clicking on the checkbox beside the network IP address then click on the Next button to continue
On the Specify IPv4 DNS Server Settings Window specify your DNS server, which is in this case is the same machine.
On the Specify IPv4 WINS Server Settings Window leave the default value as is just click on the Next button to continue
Specify IPv4 WINS Server Settings – Configuring DHCP
On the Add or Edit DHCP Scopes Window click on the Add button to add a DHCP scope
Add or Edit DHCP scopes – Configuring DHCP
After clicking on the Add button you now have to give values for the:
Scope Name: Give your scope a name
Starting IP Address: Enter the Start address or the beginning IP address you want client computer to use
Ending IP Address: Enter the End address or the last IP address you want client computer to use
Subnet Mask: Enter the network subnet mask, usualy 255.255.255.0 with 254 usable IPs is enough, but if you have a larger network infrastructure with more than 254 client computers you can use other value such as 255.255.254.0 to have a 510 usable IPs or 255.255.0.0 to have 65,534 usable IPs.
Default Gateway (optional): Enter your network gateway, usually your router IP address or your internet router
Click on OK when your done, the preceeding screen just requires you to click on the next button and accept the default value
- Confirm your installation selection and click on the Install button
- After clicking the install button DHCP server will be installed on the machine, wait till the process is complete
- After the installation process is complete you can now start managing your DHCP server
Using a wireless network in your home or office is more convenient than using a lan cable connected to a router or a switches. You can do all what a wired network can do such as sharing internet access, files sharing, printer sharing, online games, browse computers connected to your network and some other stuff what a wired network can do. A wired network cable can run up to hundred meters before signal is lost and requires a repeater while a wireless network will depend on the technology the router is using such as Multiple-Input and Multiple-Output or “MIMO” and Wireless-A / B/ G and N technology.
MIMO is a WIFI technology that uses multiple transmitter and reciever to create a robust signal that travels farther, MIMO uses multipath where signals bounces off walls and ceiling so it reduces dead spots on your home network, so with this technology on your router you’ll always have a good signal within your home network, so check the router you’ll be buying to have this technology.
After you have setup your wireless network you can now sit anywhere in your home using your wireless capable device such as your laptop browsing the internet or accessing your files on the other computer within your network, it is much convenient than a cable plugged into your laptop.
What you need to setup your home wireless network.
Wireless Router: Your wireless router will be responsible for transmitting the signal coming from your internet connection or whatever you’re accessing from other computer and broadcast it over the air, it’s also within the router where you will setup your internet connection, DHCP connection for automatic IP configuration on client computers, set your WIFI access key or “Passphrase” and other configuration required to have a WIFI connection. Some popular wireless router brands are Linksys, D-link, TP-Link, Netgear.
There are four different wireless networking technologies: 802.11a, 802.11b, 802.11g, and 802.11n while wireless G (802.11g) and Wireless N (802.11n) are the most common router technology, they offer excellent performance and are backward compatible with older WIFI devices.
Note: Some wireless router this days don’t show their wireless antenna because they use internal antenna.
2. Your operating System that Support Wireless networking.
Windows operating Systems such as Windows xp, Windows Vista, Windows 7, and Windows 8 fully support wireless networking. It is always recommended to update your windows operating system to the latest Windows update for security reasons although you still can setup your wireless connection even you don’t update your windows. Updating windows will secure you from hackers and viruses since you will be exposing your computer to the network or to the World Wide Web, also always update your antivirus definition and be sure to activate your windows firewall for maximum security. Remember that when you connect to the network or to the internet you will be exposing your computer to the people within your network or to the world wide web.
3.A broadband or DSL modem: Usually this is not required if you plan for a home network only and don’t want to be connected to the internet, but if you require an internet connection then a modem is required. Broadband or DSL modem are usually supplied by the Internet Service Provider and are not readily available to purchase in a typical computer shop. Many internet service providers this days offer wireless router/modem this means that a router and a modem in one device, in this case you don’t need to buy a separate wireless router.
4.Your Desktop computer with Wireless adapter and or Laptop computer.
Newer desktop computers specially branded ones are usually equipped with wireless adapter card and they are wireless ready PC’s, if your desktop computer is not equipped with wireless card then you have to buy a wireless adapter card in the form of PCI card or a USB, I suggest buying a USB wireless network adapter since you don’t have to open your computer to install the device, all you have to do is plug-in the USB to a USB port and you’re done.
It is easy to distinguish a PC with wireless card by just looking at the back of your computer if you see an antenna just like the antenna of a wireless router then it has a wireless adapter card. A laptop computer is usually equipped with a wireless adapter card and all you have to do is switch on the wireless adapter card on your laptop.
5. Router Wireless User Manual.
Familiarize your router by reading your router user manual.
If all of the required to build a Home Wireless Network are available, then you can now continue in setting up your wireless network, follow the steps below in configuring your wireless network.
1. If you are connected to the internet disconnect your modem so that you are able to use the LAN port on your computer, skip this step if you don’t have internet connection.
2. Connect to your router by connecting the RJ45 connector of your LAN cable to the LAN port on your router and the other end to the LAN port on your desktop computer you should see the LED light up at the front panel of your router corresponding to the port number where you plug in the cable.
3. Connect your modem cable to the WAN or Internet port of your router and wait for a while, when your router is connected to the internet the WAN or the Internet LED at the front panel of your router should light up.
4.Connect to your router setting by opening your favorite internet browser and typing http:// and the ip address of the router at the address bar and typing the username and password. See list below for default username and password for different router brand name.
5. I will be using Linksys router as a guide, what you see on your router could be similar with mine, almost all router have almost the same setup.
Click on the Basic Setup under the Setup Tab, refer to your router user manual if you have different router , in this tab you can setup your internet connection, if you use DSL to connect to the internet then select PPPOE or ask your Internet Service Provider what credential you should put in the box.
Router Basic Setup
The IP address and Subnet Mask will be for the router IP address, if you want to change the default IP address then you can change it here.
DHCP Server : Set this to Enable to set the router as DHCP server it will be the router which give an IP address, subnet mask and Gateway to the Client PC connected to the router. Setting this to enable will spare you the hassle of setting each individual client pc I.P address.
Save your settings when your done
6. After setting the Basic Setup you now have to setup the wireless setting of your router, look for Wireless Tab on the router and select basic wireless settings.
Router Wireless setting
Network Mode : Select the wireless standard to use for your network on the dropdown box such as Wireless-A / B /G or N. Select Wireless N or the default setting on your router.
Network Name (SSID) : The SSID is the network name shared among all points in a wireless network. The SSID must be identical for all devices in the wireless network. It is case-sensitive and must not exceed 32 characters you can use any of the characters on the keyboard. The SSID name is what you see when you scan for available wireless network.
SSID Broadcast : When scanning for available wireless network you’ll see the SSID of your network if the SSID broadcast is enable else set to disable if you don’t want to broadcast your router SSID.
Save your settings when your done
7. After you have setup the basic wireless settings, click the wireless security tab, in here you will be able to setup wireless security mode and passphrase.
Router security setting
Security Mode : Select the type of security for your Wifi such as WEP, WPA-Personal, WPA Enterprise, WPA2 Personal or WPA2 Enterprise. Select WPA2 personal for your wifi since WPA2 have the strongest encryption method.
Encryption : Select the wifi encryption type default encryption will do the job. The value for this could be TKIP or AES.
Passphrase: When someone detect your wifi and wanted to connect to your wireless LAN, they have to know the passphrase of your wifi in other word this will serve as the password for your network so that no unauthorized user will be able to join your network.
When you have finished setting up your router save your setting and restart your router. Disconnect the LAN cable to your desktop or laptop same with the router , on your Wireless enable devices such as your laptop or desktop try to scan your network by clicking wireless icon on the taskbar
In Windows 7 or whatever operating system you’re using, scan for wireless network, all available wireless network will be shown including those wireless network that don’t broadcast there SSID. Other network are those wireless network that don’t broadcast there SSID while those wireless network that broadcast there SSID are shown with the SSID name such as PHA-NET as shown in the Image.
Click on the wireless network that you want to connect to, click on connect and type the passphrase same as what you have type in the passphrase box in the security tab on your router, remember that it is case sensitive.
When you have successfully connected to your wireless router you will then be able to browse your network and browse the internet if you have connected a modem on your router and set the settings properly.
When you are unable to browse a particular network pc but you can see the name of the PC in your network neigborhood then the cause could be that the firewall on that pc is enabled or an antivirus software is preventing you from accessing this pc. This is for security reason but if you really need to access such pc you can disable the firewall or add your IP address on the security rules for allowed inbound and ourbound connection.
1.TO ENABLE OR DISABLE IN INTERNET EXPLORER
1. In Internet Explorer click on tool on the top menu.
2. Choose Internet Options.
3. Click on the Security tab.
4. Click on Custom Level
5. Scroll down until you see the section labeled ‘Scripting.’
8. Click on OK and refresh your browser to see the effect.
2.TO ENABLE OR DISABLE IN MOZILLA FIREFOX
1. In Mozilla Firefox click on tool on the top menu.
2. Click on Option.
3. Select Content on the navigation tab.
3.TO ENABLE OR DISABLE IN SAFARI 5
1. Apple safari click on the Edit menu.
2. Select on Preferences.
3. Inside preferences click on the Security tab.
4.TO ENABLE OR DISABLE IN GOOGLE CHROME
1. Click on Customize and control google chrome
2. Click on Settings
3. Scroll down at the bottom of the page and click on show advance settings
4. Under privacy
If you love using Windows 7 or its newer family of Windows Operating system then you might probably be aware of what User Account Control (UAC) is. It is that nagging popup that shows up if you try to run an app or try to install something on Windows. User Account Control is a way of Windows notifying you of any changes that are going to be made to your computer especially if that change to be made requires a level of administrative privilege. If you want a more secure computer system then leave User Account Control to its default settings so that apps won’t easily change your system settings without you knowing it.
To Disable User Account Control In Windows 7
Disabling UAC in Windows 7 is easy, to disable it open up Control Panel, it doesn’t matter if you’re viewing control panel in category view or in small or large icon. Type uac on the Control Panel search box then click on the Change User Account Control settings.You can also click on the Start menu and type uac on the search box.
On the User Account Control Settings window, just drag the slider all the way down to totally disable UAC. Dragging the slider up will enable it, select what security level you want to apply then click on the OK button to save your settings.
To Disable User Account Control In Windows 8
To disable UAC in Windows 8 hover your mouse on the lower right edge of your screen, click Settings on the side menu then click on Control Panel. On the Control Panel type uac on the Search text box, then on the search result click on the Change User Account Control settings.
On the User Account Control Settings window drag the slider all the way down to disable UAC or drag the slider up to enable UAC and change security settings. When done click OK button to save your settings
To Disable User Account Control In Windows 8.1
To disable UAC in Windows 8.1 hover your mouse on the lower right edge of your desktop until the side menu appears, click on Search icon and type uac. On the search result click on Change User Account Control settings.
To disable User Account Control drag the slider all the way down or drag the slider up to enable UAC then click on the OK button to save your settings.
Once you connect your computer to the internet or to a network, your Windows operating system will now be vulnerable to attack from hackers and malicious software such as worms, this is true if you don’t have antivirus software installed and your Windows firewall is disabled. By default when you install windows, windows firewall is enabled and therefore disabling all incoming traffic to your computer including ICMP traffic. Just like any other firewall software, Windows firewall can be configured to allow or disallow specific services and ports for example you can allow a particular computer to connect to your computer while other computer will not be able to connect to your computer. In order to enable or disable Windows firewall you must be logged in as an Administrator.
To Enable or Disable Windows Firewall
- Click on Start button >> and then clicking on Control Panel under Control Panel select Windows Firewall.
- In the left pane, click Turn Windows Firewall on or off. If you are not logged in as an administrator you will be prompted with the Administrator password or if logged in as an administrator you will be prompted with confirmation, please type the password or confirm to continue.
Windows Firewall Settings
1. Turn on Windows Firewall
This is the default setting when Windows is installed. When this setting is on, most programs are blocked from communicating through the firewall. If you want to allow a particular program to communicate through the firewall, you can add it to the list of allowed programs. When you install a program that require an internet connection, you will be ask if you’ll allow or disallow internet connection for this particular software.
2. Block all incoming connections, including those in the list of allowed programs.
Any unsolicited connection attempt to your computer will be block by the firewall. This setting is ideal if you’re connecting to a public network such as hotel, airport, or any public hotspot. Programs you have listed in the allowed programs will be ignored but you can still browse the internet and send and receive email.
3. Notify me when Windows Firewall blocks a new program
Windows firewall will inform you when a program is blocked and give you the option of unblocking that program.
4. Turn off Windows Firewall (not recommended)
This setting might make your computer and your network more vulnerable to attack from hackers and malicious software such as worms. When you have to do these be sure to have your anti-virus active and up to date this setting is not recommended unless it is necessary to do so, so avoid using this setting.
Windows update is a service provided by Microsoft for windows operating system to download patches to fix security holes and other Microsoft applications such as Microsoft Office. Updating your windows operating system keeps your PC safer and run smoothly.
To setup windows update:
- Click on the Start button and select All programs and click on the Window Update or Click on Start and right click on Computer select Properties and you’ll be shown up with the basic information about your computer. On the lower left pane, click on Windows Update
- To check for available update click on Check for updates.
- Click on Change Settings on the left pane to customize your setting for the Windows Update.
Most probably you don’t need to change any setting and leave the setting as is or you can change the setting to your preferences.
Just yesterday your computer is working perfectly then today when you try to power on your computer your computer screen welcomes you with lots of errors such as blue screen, boot failures messages, hearing error beeps from your motherboard speaker and or lots of errors messages appearing on your computer display screen when windows load. The first thing that may come to your mind is to bring the computer to your local computer repair shop just because you think that it is hard to repair this kind of computer problems and need lots of expertise to fix your computer problem by yourself. Sometimes repairing a computer problem don’t require you to be a computer wizard or a rocket scientist to fix it yourself, just following some simple instruction can solve your computer problems most of the time. Try searching the type of computer problem you encounter on this site or try searching in google, I’m sure you can find a lot of result relevant to your computer problem and a step by step instruction on how to deal and fix your computer problem.
Do It Yourself
Fixing your computer either hardware or software related problem will save you lots of money and the time getting your computer to your local computer repair shop. Saving money is probably the most obvious advantage of fixing your computer yourself despite the fact that you also gain some knowledge in repairing or fixing your computer, so the next time the same problem occurs you already know how to fix it it again by yourself. For a computer technician “like me” we always want you to bring your computer to the repair shop but if you can do it yourself then no one is prohibiting you to do it by yourself.
You don’t need lots of expensive tools to fix your computer
You might think you need lots of tools to fix your computer just like a car mechanics have, in repairing a computer a screw driver alone can do most of the job when related to hardware failure but with software problem you can always download lots of free tools on the net to do the job and by following some simple steps by step guide to accomplish the task. Sometimes hardware related problem can be solved by just reinserting a computer memory a video card or just tightening a loose cable connector.
If you think you can’t do it
If for instance you have tried your best in solving the problem and yet nothing fix it or you are too afraid to do it yourself or maybe this is your first time holding a computer mouse and have trouble using it then it might be the right time to bring your computer to your local computer repair shop. Before bringing your computer to the shop list down the problem you encounter with your computer the nature of the problem such as your Windows don’t boot, Frequent system hang, error beeps, blue screen, viruses or any other problem you encountered as this is will be ask by the technician and to speed up fixing your computer.