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If ever you suspect that there is something wrong on your hard drive, you can check your disk using CHKDSK a Windows 7 disk checking tool. CHKDSK scans your hard drive for errors and makes your computer performance improve by making sure your HDD has no errors.
Running CHKDSK on your computer may take time depending on your hard drive capacity, run chkdsk when you don’t need to use your computer for the moment.
To Run CHKDSK In Windows 7
To run CHKDSK in Windows 7, lunch My Computer and right click on the drive you want to check then select Properties on the context menu.
On the Local Disk Properties window, select Tools tab and click on Check now button to run check disk on your local drive.
On the Check Disk Local Disk window you have two option that you can select, by default the “Automatically fix file system errors” is checked, leave this option as is so that chkdsk will automatically find and repair physical error on the hard drive. If you want to check for any bad sectors on your hard drive check the “Scan for and attempt recovery of bad sectors“. Checking the “Scan for and attempt recovery of bad sectors” will take longer to complete but it’s worth it if you suspect a bad sector in your hard disk drive. Click on Start button to continue.
If you see this message when you click on the Start button it means that the disk you are trying to check is in use and ask you to schedule a scan. Click on the Schedule disk check button to run chkdsk when you reboot or restart your PC.
When you power on or restart your computer chkdsk will now check your disk, wait for chkdsk to complete. After chkdsk competed checking your drive for errors, chkdsk will continue to load windows.
The system registry is used for storing information and configuration about the computer. Modifying the system registry especially if you don’t know what you’re doing could lead to your Windows operating system un-operational or even worse you have to clean install your windows again. If you share your computer with other user you might want to give them a Standard User account or prevent them from modifying the system registry.
To disable or enable access to the registry make sure that your account have an administrative privilege. If you are logged in as a standard user you’ll see similar message below when trying to run regedit or gpedit.msc.
How to enable disable registry editing
To enable or disable registy access
- Click on Start Menu then click on Run and type gpedit.msc on the Run command box and hit the enter key if your Start menu don’t have the Run command check out How to Add the RUN Command at the Start Menu how-to on this site. This tutorial applies to Windows xp and Windows 7. Note that Windows 7 Home edition don’t have access to gpedit.msc
- Under the Group Policy Editor Navigate to Administrative Templates then to System under the User Configuration.
- On the left pane right click on the Prevent access to registry editing tools and click on Edit.
- Under the Prevent access to registry editing tools window click on the Enabled radio button to disable editing of the registry or click on the Disable to enable editing of the registry. The default value of the Prevent access to registry editing tools is Not Configured which is the same as the Disabled option which means editing the registry is enabled. Click on ok to close group policy window.
- Now when you run registry editing tools such as regedit you’ll see a message saying You do not have permission to perform this operation.
Many motherboards have a built in video to output a video signal to your display monitor, even branded desktop computer manufacturer such as HP, Dell and Acer computer may have a built-in video card on there motherboard. They are called onboard or built-in because they are integrated to the motherboard itself and they cannot be removed or replaced when they are damaged. Doing encoding or typing , browsing the internet, watching movies and playing a none power hungry computer games, the built-in video is more than enough to do the job and you don’t have to upgrade your built-in video. If you think your built-in video is not enough for your needs and want a more decent and better quality video rendering card so that you can play your favorite games smoothly or you really need a fast video card then it’s time for you to upgrade your system with a discrete or dedicated video card.
Installing your video card is easy you just need some basic knowledge on computer components and some basic safety procedure. Follow on through the step by step procedure to successfully install your video card.
How to install video card
Before buying a video card make sure that the video card you’re going to buy and your current motherboard are compatible with each other. There are different types of graphics expansion slot such as the old PCI or PCI 2.0 the newer Accelerated Graphics Port (AGP) and the latest Peripheral Component Interconnect Express (PCIe), check your motherboard manual for more info on motherboard graphics port. If the available video graphics port on your motherboard is a PCI express slot then you should buy a video card that has a PCI express bus, check out more about video card.
- If your computer has already discrete video card installed then uninstall its drivers and software first at your windows control panel. If you don’t have an old graphics card installed then you can skip this step.
- Power off your computer and unplug the power cable on your computer power supply also unplug your computer at the wall outlet.
- Open your PC case, there are usually two screws at the back of your pc unscrew it and set aside the screw. Some pc case don’t have screws, to remove the cover you just have to slide the cover to open, refer to your pc case manual on how to remove the cover of your pc.
- Before touching any component inside your pc, you have to discharge yourself from static charge by using an anti-static wrist strap and grounding it to the metal part of your computer casing, if you don’t have this anti-static device you can touch any metallic part on your pc casing for a few second but not on the painted part of the pc case. Touching the computer case non painted metalic part will discharge any static charge from your body. If you use anti-static wrist strap don’t forget to remove the anti-static device before powering your pc.
- If you have an older video card installed, unscrew it from its card bracket, to remove your old video card you have to push the lock downward for an AGP port and for a PCI express port you have to slide the lever to the left and pull your video card. If you don’t have an old video card installed then you can skip this step instead you have to locate the AGP port or PCI express port on your motherboard, check video card for more information.
- Install your new video card by aligning the guide notches with the graphics card slot and pressing the card gently till it sit firmly on the graphics port, you’ll know if the graphics card is sited well if you can’t see the pins of the graphics card when sited on the motherboard graphics slot.
- Secure the card by using a single screw and screwing the card bracket firmly to the computer casing, for double width video card you have to use two screws to secure it.
- Inspect the graphics card if it moves, a well sited graphics card should not move when you try to move it. A not properly sited card may damage the card or even the motherboard when you power on your computer.
- Plug in the power cord to the power supply and power on your computer.
- Wait for windows to load, a “new device detected” message by windows should appear and it will install the necessary driver, now is the time to install your video graphics card device driver. Insert the device driver CD/DVD rom that came along with the video card when you bought the card and run setup follow on through the setup process the computer may need to restart after the driver is installed. For better video performance download the latest driver of your video card on the manufacturer website.
- Check device manager if the graphics driver is installed properly, click on start >> right click Computer and click on Manage >> on Computer Management window on the left pane click on Device Management >> on the right pane double click on Display Adapter there you’ll see the installed video card, you should see no yellow exclamation on the display adapter section.
- If everything works out right then you can now turn off your computer and close your computer casing and return the screw at the back of your pc.
Power supply is a vital component of a typical computer system that should be given importance just like other major computer components. Power supply powers everything inside the computer from motherboard to peripheral devices and other components inside the computer such as hard disk, optical drive, floppy disk, fan and also other component connected outside the computer such as flash drives or external drives that don’t have power connector but a usb cable attached to the computer. Computer power supply sits at top or at the bottom inside the computer case it is a metal box that has many connectors that connects to the motherboard and peripheral devices inside your computer. A cheap “generic” power supply will power your computer and it will work just fine with your system as long as you don’t have a high end motherboard, high end video card and don’t overclock your system, otherwise you’ll be facing many stability issues such as your computer won’t boot, the blue screen of death, constant freezing or system hang and recurring system reset.
Changing or replacing your power supply is not just a matter of replacing your old power supply with a power supply with a higher wattage. Things to consider when purchasing a power supply, first thing to consider is the PSU +12v rail with the maximum ampere indicated (e.g +12V 28A) the higher the ampere the better. Why is the +12v rail very important to consider when buying a power supply? Because the +12v will power most of the peripheral devices inside the computer including the microprocessor, that’s why it require a higher power rating also a good power supply has more than one +12v rail. Other thing to consider is the 20/24 pin and ATX 4 pin newer motherboard or high end motherboard uses 20/24 pin and ATX 8 pin motherboard power connector instead of the ATX 4 pin motherboard power connector, check your motherboard manual for more info on this. If you are using a high end graphics card this cards usually need a 6pin PCI-E power connector to boot so be sure to have this if you have a high end video graphics card.
INSTALLING THE POWER SUPPLY UNIT
- Be sure to choose the right power supply for your system check out power supply calculator for your system wattage requirement.
- If you are replacing your power supply unit, open your PC case, there are usually two screws at the back of your pc unscrew it and set aside the screw. Some pc case don’t use screws, instead you have to slide the cover to open, refer to your pc case manual on how to remove the cover of your pc.
- Locate where to mount the power supply it can be at the top or at the bottom of the computer case depending on the type of casing you have. In the image below the power supply is located above, some newer computer casing have their power supply mounted at the bottom.
- Disconnect all of the wires from the motherboard, hard drive, optical drives and any other that connects to the power supply then remove the power supply by unscrewing the 4 screws that hold the power supply and then insert the new power supply.
- Secure the new power supply by screwing it with 4 screws at the back of your casing, before screwing make sure you can see all screw holes of the power supply to avoid screwing the power supply on the wrong way.
- Plug-in the 20/24 pin power connector to the motherboard, old motherboard use 20 pin connector, you can easily remove the 4pin on the 20/24 pin connector by just sliding out the extra 4pin.
- Plug in the ATX12v power connector on the motherboard, this ATX12v is used to power the processor, high end motherboard use 8pin connector to power the processor. Don’t forget to connect the ATX12v on the motherboard otherwise your computer will not boot or the display screen will be blank.
- If you use floppy disk connect the floppy disk power connector to the floppy disk
- Locate the 4 pin molex connector and connect to the hard drive, optical drive or fans. If you are using SATA drives use the SATA power connector and plug it in on your SATA hard drives or optical drives. Some hard drives have both the SATA and Molex connector available so you can use either the SATA or the Molex connector but not both just select one of them.
- If you are using a mid or high end video card connect the 6 pins or 8 pins PCI-e connector on you video card, if you are using dual video card you need 2 x 6+2 PCI-E power connector one for each video graphics card.
A microprocessor or the CPU is one of the main component of a computer system without it the computer will surely not function at all. The processor determine the speed of your computer overall system performance alongside with the system memory and the hard disk drive speed, if you are into computer gaming consider a high end graphics card for top system performance, so when upgrading your computer consider these computer components. The speed of a processor is measured in Ghz a 1,000 Megahertz is equivalent to a 1Ghz the higher the Ghz the better your processor performs.
When buying a processor you should consider looking at its technical specifications such as speed, cache and socket type. The cache is used by the processor to reduce the access time the processor in accessing the system memory this means the higher the cache the lesser the processor time accessing the system memory thus it boost the speed of your computer system. The cache is the processor own memory but faster than conventional memory. The processor stores copies of the most frequently used data to the cache for faster access. Cache is measured in Megabytes (MB), modern processor such as Intel i7 processors with L1 and L2 caches can have up to 10MB of cache.
How to Install the CPU
- Before Buying the Processor
Before attempting to upgrade or buy a new processor always check your motherboard specification, check for the brand name of the processor that your motherboard support such as AMD or Intel processor, the socket type and the highest processor the motherboard can handle, for example if your motherboard support socket 1155 then you should buy a microprocessor that is socket 1155, never attempt installing a 1155 processor on a motherboard that support 1156 processor. Table below list the most common processor socket type with its package type and number of pins.
Common Socket types Socket name CPU family supported Package No. of pins LGA 775 Intel Pentium 4, Intel Pentium D, Intel Celeron, Intel Celeron D, Intel Pentium XE, Intel Core 2 Duo, Intel Core 2 Quad, Intel Xeon LGA 775 Socket AM2+ AMD Athlon 64, AMD Athlon X2, AMD Phenom, AMD Phenom II PGA 940 LGA 1366 or Socket B Intel Core i7, Intel Xeon LGA 1366 Socket AM3 AMD Phenom II, AMD Athlon II, AMD Sempron PGA 941 or 940 LGA 1156 or Socket H Intel Core i7, Intel Core i5, Intel Core, Intel Xeon, Intel Pentium, Intel Celeron LGA 1156 LGA 1155 or Socket H2 Intel Sandy Bridge, Intel Ivy Bridge LGA 1155 Socket FM1 AMD Llano Processors PGA 905 Socket AM3+ AMD FX Vishera, AMD FX Zambezi, AMD Phenom II, AMD Athlon II, AMD Sempron PGA 942 Socket FM2 AMD Trinity Processors PGA 904 LGA 2011 Intel Sandy Bridge-E, Intel Ivy Bridge-E LGA 2011
2.Upgrading Your System
When upgrading your processor buy the highest processor speed that your motherboard and your budget can handle. Check your motherboard user manual for processor that it can support.
3. Discharge From Static Charge
Discharge any static charge from your body by using an anti-static wrist strap and connecting it to the ground or the metal chassis of the pc casing. If you don’t have an anti-static wrist strap you can touch any none painted metallic part of the computer casing to discharge static charge from your body.
4. Disconnect Power Connector
If you are upgrading your processor remove all power connector connected to the system board such as the +12v ATX and the 20/24 pin power connector also be sure to disconnect the power plug from the wall socket.
5. Removing The Heat Sink
Remove heat sink fan power connector and the processor heat sink by unlatching the mechanism that holds the heat sink you may need a screw driver to unlock the four fastener by rotating counter clockwise then pull up on each fastener. For AMD processors, there are two type of heat sink used such as clip type or screw type heat sink, to remove a clip type heat sink unhook the cam handle latch from the retention frame and remove the spring clips to where they are attached using a screw driver. For a screw type heat sink, just remove the screws and twist the heat sink back and forth or in a clockwise and counter-clockwise rotational direction to break the seal, this to break the adhesion seal between the heat sink and the processor.
6. Removing The Processor
Before removing the processor clean up all the thermal paste on the processor heat spreader using a cotton or a cotton buds. To remove the processor push the release lever down a bit and lift to unclip the ZIP (Zero Insertion Force) socket, make sure that the lever is fully raised before removing the processor, since it is a ZIP socket it means that no significant force is needed to remove or insert the processor, if removing or installing the processor requires any significant force to remove it then there is something wrong, make sure that the lever is fully raised up and no processor pin(s) are bend.
7. Installing The Processor
To install the processor, hold the processor with your fingers in line with the processor cutouts always hold the processor on its edges and never touch its pins. Align the processor cutout with the motherboard processor socket notches and lower the processor straight down without tilting or sliding the processor in the socket.
8.Securing the Processor: Close the load plate and lower down the lever till it locks and engage.
9 Applying Thermal Paste: Apply a small amount of thermal paste but a little bit more than that on the image at the center of the processor heat spreader.
10 Installing The Heat sink: With the processor installed properly and locked, place the heat sink by aligning the fastener onto the motherboard four holes. Push down each of the fastener to lock the heat sink, make sure that each fastener are securely attached to the board by gently pulling up each fastener, a properly attached heat sink should not move when you try to move it.
12.Final Check up
Before you power on your computer check that the cpu fan is installed properly, try to move the heat sink fan, the heat sink and the fan should not move at all, also check that the fastener is locked properly by gently pulling up on each fastener. An improperly installed heat sink will prevent good contact with the processor heat spreader and may cause unreliable operation of the processor and even damage the processor due to excessive heat.
A computer mouse is small computer device that we connect to our computer, invented by Douglas Engelbart in 1963 and one of the great breakthrough that changed how people interact with computers. Mouse is considered as an input device and most often used with personal computers. A computer mouse is derived from its shape and because the wire connected to the mouse can be imagined as its tail. With the use of a mouse we can easily interact with windows and other computer programs that a computer keyboard can’t normally do.
Moving your computer mouse on a flat surface will move the mouse pointer on your screen the same direction as where you move your computer mouse. A typical computer mouse consists of at least two buttons one located on the right side and the other to the left side. The right button of a mouse is usually used for option menu of a particular program (“e.g MS Word”). Whenever you right click on any portion of the screen and for instance that particular portion of the screen has an option menu that menu will popup. The left button of a mouse is usually used for selection. Newer computer mouse have scroll wheel used for scrolling the screen of a particular program (“e.g MS Word”) up or down this is useful if the program you are using have vertical scroll bar. Most often vertical scroll bar are shown when the screen of a particular program does not fit into the computer display. Modern computer mouse have more than two buttons, the functions assigned to the other buttons will depend on the manufacturer specification.
Most commonly used type of mouse are the mechanical mouse, optical mouse and the wireless mouse. A mechanical mousehouses a hard rubber ball that rolls when you move the mouse. As the ball move the horizontal and vertical wheel moves. The LED and photodiode act as sensors, since the wheel have holes on it the beam of light that the LED emits breaks on and off which turns as pulses. The speed of the mouse pointer that you see on your screen is directly proportional to the speed of pulses that the sensors generate.
Inside an Mechanical Mouse
Optical mouse uses light emitting diode (LED) that bounces off the surface to a CMOS sensor chip in order to detect movement. Optical mouse don’t have moving parts that will likely to worn out over time.
Inside a Optical Mouse
Wireless mouse is another kind of computer mouse and are more advance than the mechanical and optical computer mouse. Wireless mouse uses Radio Frequency usually on a 2.4GHz frequency and runs on battery. These kinds of mouse have a receiver that usually plug into the computer in the form of a USB device or an add-on card that is placed in an expansion card inside your computer.
There are times when you install an app and the app requires a specific dot Net Framework version for the program to function properly. You might be wondering why the program you are trying to install or run requires dot net framework 3.5 even you know that you already have the latest version of dot Net Framework such as version 4. Some app requires different version of dot Net Framework this is because they are designed on that specific version. This is also the reason why you should not uninstall your older or newer version of dot Net Framework on your computer.
Installing the .Net Framework on Windows 8 and Windows 8.1
If you install or run an app on your computer for the first time and requires the dot Net Framework 3.5 but not enabled on your computer a message box appears telling you that an app on your PC need the dot Net Framework 3.5 feature on your PC.
To install the dot Net Framework 3.5 on your PC click on the Download and install this feature, this option requires an internet connection to continue. Click on Skip this installation to install dot Net Framework 3.5 later.
To Enable dot Net Framework in Control Panel
You can also enable the dot Net Framework in Control Panel, this option require an internet connection to continue. To enable the dot Net Framework 3.5 in Control Panel, click on the Program and Features, on the left pane of the Program and Features window click on “Turn Windows features on or off” link, and then select the .NET Framework 3.5 (includes .NET 2.0 and 3.0) check box, no need to select the child item.
To Install the dot Net Framework in Windows 8 and Windows 8.1 using Installation DVD
If you don’t have internet connection or your internet connection is too slow and you have your Windows 8 or Windows 8.1 installation DVD then this offline installation method is the best option you have.
To install using your Windows 8 installation DVD, first you must be logged in with administrative privilege.
Right click Start menu and then click on Command Prompt (Admin) to run Command Prompt in elevated mode.
On the Command Prompt type DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxsand press the Enter key on the keyboard. Be sure that your Windows 8 or Windows 8.1 installation DVD is inserted on the optical drive or mounted on a virtual optical drive using your Windows 8 or Windows 8.1 installation DVD .iso image file.
- D : is the optical drive or virtual drive your Windows 8 installer is inserted.
- /Online :Targets the operating system your running
- /Enable-Feature /FeatureName:NetFx3 : specifies that you want to enable the .Net Framework on your system.
- /LimitAccess : prevents DISM from contacting Windows Update
Wait for the process to complete then your done, dot Net Framework 3.5 is already installed on your PC
As you may have noticed when you upgrade or install a clean copy of Windows 8 on your computer desktop gadgets is nowhere to be found. Microsoft discontinued the use of Gadgets in its newer releases of Windows, this is because gadgets have security risk that can exploit your system and harm your computer. Windows 8 introduced Live Tiles which is more secure but you can only view it on the Start screen and has almost the same function with desktop gadgets. The difference between Live Tiles and Desktop Gadgets is that live tiles are less powerful than desktop gadget but are more secure because its apps are from Windows market and don’t have full access on your computer resources. Because Live Tiles don’t have full access on your system you won’t be able to monitor your computer system resource usage.
There are many reasons why you would want to use desktop gadget, if you want to monitor your computer system temperature, cpu usage, disk usage or your graphics card using a desktop gadget is still the best app to use.
Since Windows 8 discontinued Gadgets you won’t find it anymore within Windows 8 and Windows 8.1. To be able to use gadgets again you can use third-party software. I recommend using 8Gadgetpack for desktop gadgets, download 8GadgetPack and install on your computer. Installation of 8GadgetPack is easy and it won’t ask lots of questions during installation and also has many preloaded gadgets that are ready to use.
After installing 8GadgetPack you can right click on your desktop and you’ll see Gadgets on the context menu just like in Windows 7. Click on Gadgets on the context menu to run the desktop gadgets and select from a list of preloaded gadgets, you can double click or drag on your selected gadget to load on the sidebar just like what you do with Windows 7 desktop gadgets.
After dragging or double clicking on the Gadgets you like you’ll see them on your desktop. You can also download other gadgets and add them on the list.
If you don’t want the sidebar on your screen to appear don’t worry, you can right click on the sidebar and click on the Close sidebar to remove it on the desktop.
That’s how to add or install the desktop gadgets using third-party software, aside from 8Gadgetpack you can also use other apps for installing gadgets there’s a lot of apps on the net like this app, it’s your choice.
By default when you first install Windows 7 on your computer the administrator account won’t show when you log in to windows and even in the control panel users account. The administrator account is not gone for good but it is just not enabled by default. The administrator account should only be used for trouble shooting purposes and not for regular logins since the administrator account is the most powerful account in all of the windows users account, you should use the created user account you created for regular logins since you can set it with an administrative privilege