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You have selected free tutorial of the Microsoft Corporation for the Microsoft Technology Associate (MTA) :
98-349: MTA: Windows Operating System Fundamentals : Module 7: Maintaining, Updating, and Protecting Windows 7 :
Understanding Disk Defragmenter
Microsoft Help:-
Disk Defragmenter is a tool of window which help to rearrange the data on your volume & hard disk & fix error and reunites fragmented data so your computer can run more efficiently.
To defragment your hard disk
- Open Disk Defragmenter by clicking the Start button Picture of the Start button. In the search box, type Disk Defragmenter, and then, in the list of results, click Disk Defragmenter.
- Under Current status, select the disk you want to defragment.
- To determine if the disk needs to be defragmented or not, click Analyze disk. Administrator permission required If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
Once Windows is finished analyzing the disk, you can check the percentage of fragmentation on the disk in the Last Run column. If the number is above 10%, you should defragment the disk.
- Click Defragment disk. Administrator permission required If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
check an external hard drive if it's not working properly.
- Open Computer by clicking the Start button Picture of the Start button, and then clicking Computer.
- Right-click the drive that you want to check, and then click Properties.
- Click the Tools tab, and then, under Error-checking, click Check now. Administrator permission required If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
To automatically repair problems with files and folders that the scan detects, select Automatically fix file system errors. Otherwise, the disk check will report problems but not fix them.
To perform a thorough check, select Scan for and attempt recovery of bad sectors. This scan attempts to find and repair physical errors on the drive itself, and it can take much longer to complete.
To check for both file errors and physical errors, select both Automatically fix file system errors and Scan for and attempt recovery of bad sectors.
- Click Start.
You can Defrag the disk:
- If the disk is already in exclusive use by another program or is formatted using a file system other than NTFS file system, FAT, or FAT32, it can't be defragmented.
- Network locations can't be defragmented.
- If a disk that you're expecting to see under Current status is not showing up there, it might be because it contains an error. Try to repair the disk first, then return to Disk Defragmenter to try again.
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