1. Free up disk space
The Disk Cleanup tool helps you free up space on your hard disk to improve the performance of your computer. The tool identifies files that you can safely delete, and then enables you to choose whether you want to delete some or all of the identified files.
Use Disk Cleanup to:
Remove temporary Internet files.
Remove downloaded program files (such as Microsoft ActiveX controls and Java applets).
Empty the Recycle Bin.
Remove Windows temporary files such as error reports.
Remove optional Windows components that you don't use.
Remove installed programs that you no longer use.
Remove unused restore points and shadow copies from System Restore.
Tip: Typically, temporary Internet files take the most amount of space because the browser caches each page you visit for faster access later.
For Windows XP users:
Click Start, point to All Programs, point to Accessories, point to System Tools, and then click Disk Cleanup.
2. Speed up access to data
Disk fragmentation slows the overall performance of your system. When files are fragmented, the computer must search the hard disk when the file is opened to piece it back together. The response time can be significantly longer.
Disk Defragmenter is a Windows utility that consolidates fragmented files and folders on your computer's hard disk so that each occupies a single space on the disk. With your files stored neatly end-to-end, without fragmentation, reading and writing to the disk speeds up.
When to run Disk Defragmenter
In addition to running Disk Defragmenter at regular intervals—monthly is optimal—there are other times you should run it too, such as when:
You add a large number of files.
Your free disk space totals 15 percent or less.
You install new programs or a new version of Windows.
To use Disk Defragmenter:
Click Start, point to All Programs, point to Accessories, point to System Tools, and then click Disk Defragmenter.
Detect and repair disk errors
In addition to running Disk Cleanup and Disk Defragmenter to optimize the performance of your computer, you can check the integrity of the files stored on your hard disk by running the Error Checking utility.
As you use your hard drive, it can develop bad sectors. Bad sectors slow down hard disk performance and sometimes make data writing (such as file saving) difficult, or even impossible. The Error Checking utility scans the hard drive for bad sectors, and scans for file system errors to see whether certain files or folders are misplaced.
If you use your computer daily, you should run this utility once a week to help prevent data loss.
Run the Error Checking utility:
Close all open files.
Click Start, and then click My Computer.
In the My Computer window, right-click the hard disk you want to search for bad sectors, and then click Properties.
In the Properties dialog box, click the Tools tab.
Click the Check Now button.
In the Check Disk dialog box (called Error-checking in Windows 7), select the Scan for and attempt recovery of bad sectors check box, and then click Start.
If bad sectors are found, choose to fix them.
Tip: Only select the "Automatically fix file system errors" check box if you think that your disk contains bad sectors.
4. Protect your computer against spyware
Spyware collects personal information without letting you know and without asking for permission. From the websites you visit to usernames and passwords, spyware can put you and your confidential information at risk. In addition to privacy concerns, spyware can hamper your computer's performance. so Scan drives with antivirus every week.
5. Dont overload software and games on Harddi
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