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If you have Windows or hard drive problems run a thorough ScanDisk and Disk Defragmenter. It's a good practice to run ScanDisk and Disk Defragmenter regularly to keep your system file management at peak performance. Before running these, make sure you have closed the background applications as they can cause ScanDisk and Defrag to not function correctly.

ScanDisk

Windows XP

1. Open My Computer, and select the local disk you want to check
2. On the File menu, click Properties
3. Click the Tools tab
4. Under Error-checking, click Check Now
5. Under Check disk options, select the Scan for and attempt recovery of bad sectors check box and the automatically fix file system errors box
6. Select yes to schedule after restart if a dialog box comes up prompting you to do so
7. Restart your computer

Windows Vista/7

1. Click The Start/Windows Button
2. Select Computer
3. Right click on the Hard disk that you wish to check, this will commonly be C:
4. Select Properties from the pop-up menu
5. Click the Tools tab
6. Under Error-checking, click Check Now
7. Under Check disk options, select the Scan for and attempt recovery of bad sectors check box and the automatically fix file system errors box
8. Select yes to schedule after restart if a dialog box comes up prompting you to do so
9. Restart your computer if necessary

Defrag

Note: Do not perform a disk defragmentation on a Solid State Drive (SSD) as it could cause permanent damage to the drive. If you are not sure what type of disk drive you have, consult your PC manufacturer.

Windows XP

1. Open My Computer, and select the local disk you want to check
2. On the File menu, click Properties
3. Click the Tools tab
4. Under Defragmentation, click Defragment Now
5. Select volume to Defragment
6. Click Defragment

Windows Vista/7

1. Click The Start/Windows Button
2. Select Computer
3. Right click on the Hard disk that you wish to check, this will commonly be C:
4. Select Properties from the pop-up menu
5. Click the Tools tab
6. Under Defragmentation, click Defragment Now
7. Select volume to Defragment
8. Click Defragment