How to Clean Your Desktop Computer Case

You can wipe your computer with a lint free cloth.

You can also book a professional dust cleaning cleaning service to clean all the internal components.

How to Change Your Screen Resolution in Windows XP

To change your monitor's resolution

1. Right-click the desktop, and then click Properties.
2. In the Display Properties dialog box, click the Settings tab.
3. Move the Screen resolution slider to the left to decrease the resolution of your monitor, making text and pictures appear larger. Or move the Screen resolution slider to the right to increase your monitor's resolution, making text and pictures appear smaller.
4. Click Apply to have the new resolution take effect.
5. If the Monitor Settings dialog box appears, look at your display. If you like the new resolution, click Yes. If you do not like the resolution, click No, and return to step 3 to try a different resolution.
6. Click OK.

How to Copy Files to a USB Device with Microsoft's New OS -Windows 7

Transferring a file from the hard drive to your USB flash drive:

1. After plugging in your USB flash drive, locate either the USB flash drive icon. (If it is not on the main screen, double-click My Computer and look under 'Devices with Removable Storage' and you should be able to see it)
2. Locate the file you want to copy from the hard disk.
3. Click and hold the mouse button on the file icon and drag to the flash drive icon.
4. A dialog box will appear, showing you the progress of the copying.
5. If there is already a file with the same name on your flash drive, a warning will appear asking you if you want to replace the file already on the flash drive. If you don't want to replace it, click Cancel, rename the file on the hard drive and continue from step 2 above.
6. When you are finished transferring files and wish to remove your USB flash drive, it is good practice to remove it safely to ensure no data loss or corruption.

Transferring a file from your USB flash drive to the hard drive :

1. After plugging in your USB flash drive, locate either the USB flash drive icon. (If it is not on the main screen, double-click My Computer and look under 'Devices with Removable Storage' and you should be able to see it)
2. Locate the file you want to copy.
3. Locate the place where you want to copy the file to.
4. Click and hold the mouse button on the file icon and drag to the location on the hard disk.
5. A dialog box will appear, showing you the progress of the copying.
6. If there is already a file with the same name on the hard disk, a warning will appear asking you if you want to replace it. If you don't want to replace it, click Cancel, rename the file on the USB flash drive and continue from step 2 above.
7. When you are finished transferring files, you may remove your USB drive.

How to Uninstall a Program on Your Computer

To uninstall or change a program

1. Open Programs and Features by clicking the Start button Picture of the Start button, clicking Control Panel, clicking Programs, and then clickingPrograms and Features.

2. Select a program, and then click Uninstall. Some programs include the option to change or repair the program in addition to uninstalling it, but many simply offer the option to uninstall.

To change a program, click Change or Repair. Administrator permission required If you're prompted for an administrator password or confirmation, type the password or provide confirmation.