Disk power management does not work after Service Pack 4.

John Savill

September 29, 1999

1 Min Read
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A. After Service Pack 4 is applied the Windows NT operating systemaccesses the disk every 5 minutes which will interfere with disk powermanagement features. This disk access is caused by a time stamp used by theEvent Log service and was intended for NT Server only but has been enabled onWorkstation.

To fix this perform the following:

  1. Start the registry editor (regedit.exe)

  2. Move toHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionReliability

  3. From the Edit menu select New - DWORD value and enter a name ofTimeStampInterval

  4. Double click the new value and set to 0

  5. Close the registry editor

  6. The change should take immediate effect. If you change from 0 to anothervalue then a reboot is required.

See http://support.microsoft.com/support/kb/articles/Q194/7/49.ASPfor more details but this has been fixed in Service Pack 5.

About the Author

John Savill

John Savill

https://savilltech.net

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