Why does my computer run ScanDisk every time I start it?

In Windows 98SE ,Xp or Me, your computer may run ScanDisk at every reboot due to a problem which prevents the writing of the contents of the virtual cache to the hard disk. With IDE disks, data may be written to the hard disk's on-board cache but not to the disk itself. This results in a loss of data, and causes ScanDisk to run at every reboot.

This is a known problem with Windows 98SE ,Xp and Windows Me for which Microsoft has issued a fix. You can download the Windows IDE Hard Drive Cache package from the Microsoft Windows Update web site at: windowsupdate When the Windows Update page is displayed, follow these steps:

1.to create a list of available updates for your computer, click Product Updates.

2.After the catalog is created, click the Windows IDE Hard Drive Cache Package checkbox to select it.

3.Select any other updates you wish, click Download, and then follow the instructions to complete the download process. For the update to function properly, you may need to update a registry value.




The CacheWriteDelay value specifies the number of milliseconds of delay. To modify this value:

1.Start Registry Editor by clicking normal and then Run... . Enter Regedit.exe

2.Locate and click the following key in the registry: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion

3.From the menu, select new , and then DWORD Value.

4.To name the new value, enter CacheWriteDelay .

5..Right-click the CacheWriteDelay value, and then click Modify.

6.Under "Base", click Decimal

7.In the "Value data" field, type 2000 and then click OK.

8.Quit Registry Editor.

9.Restart your computer. Allow it to finish running ScanDisk and wait for the Windows desktop to appear. To check whether ScanDisk runs at startup, shut down and restart again.

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