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I used the Disk Cleanup Tool in Windows Vista, and now the hybrid sleep feature and the hibernation feature are unavailable
Article ID: 928897 - View products that this article applies to.
After you use the Disk Cleanup Tool in Windows Vista, you may experience the following symptoms:
To fix this problem automatically, click the Fix this problem link. Then, click Run in the File Download dialog box and follow the steps in this wizard.
Fix this problem
Microsoft Fix it 50078
Note In order to enable the hibernation file, you must have at least as much free space on your system drive as there is physical memory in the computer. If you do not have adequate free space available, you will get the following error when you run this Fix it Solution:
This "Fix it" does not apply to your system.
Note this wizard may be in English only; however, the automatic fix also works for other language versions of Windows.
Note If you are not on the computer that has the problem, you can save the automatic fix to a flash drive or to a CD so that you can run it on the computer that has the problem.
To determine whether this resolved the problem, go to the "Did this fix the problem?" section.
Problems can occur when the Disk Cleanup Tool disables the hibernation file. The hibernation file must be enabled for the hybrid sleep feature and the hibernation feature to work in Windows Vista. When the hibernation file is disabled and the hybrid sleep feature is enabled, and then you use the hybrid sleep feature, no backup of open programs and open files is saved to the disk. Also, when the hibernation file is disabled, if the computer loses power while it is in sleep mode, open programs and open files will not be recovered after the computer is restarted, and any unsaved work will be lost.
To enable the hibernation feature and the hybrid sleep feature, follow these steps:
Determine whether the problem is fixed. If the problem is fixed, you are finished with this article. If the problem is not fixed, you can contact support
For help with power consumption and battery life problems in Windows Vista, visit the following Microsoft Web page:
Fix problems in which power consumption is more than expected or the battery life is short
Article ID: 928897 - Last Review: September 23, 2011 - Revision: 5.0