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| Defragmenting the hiberfil.sys file in Windows 2000 and later |
| Windows uses the hiberfil.sys file for system hibernation. By |
| design, the OS's built-in disk defragmenter utility and most |
| third-party products, such as Executive Software's Diskeeper, won't |
| defragment hiberfil.sys when you attempt to optimize the disk that |
| contains the file. However, Sysinternals' free PageDefrag tool does |
| defragment the file. If you don't want to use a third-party product to |
| defragment hiberfil.sys, you can delete the hibernation file, |
| defragment the disk, then recreate the hibernation file by performing |
| 1. Start the Control Panel Power Options applet. |
| 2. Select the Hibernate tab. |
| 3. Clear the "Enable hibernation" check box, then click OK to |
| delete the hiberfil.sys file. |
| 4. Start your defragmentation program to defragment the disk. |
| 5. After defragmentation is finished, start the Power Options |
| 6. Select the Hibernate tab. |
| 7. Select the "Enable hibernation" check box, then click OK to |
| create the hiberfil.sys file. |
| Other files that the Windows disk defragmenter utility doesn't |
| - Files in the Recycle Bin (so it's a good idea to empty the |
| Recycle Bin before you defragment a disk) |
| - Pagefile.sys (third-party products can defragment this file) |
| - Files that are in use when you run the disk defragmenter utility |
| (so it's a good idea to shut down all running programs and any |
| unneeded services before you run the utility) |
| If the disk that you're defragmenting has less than 15 percent free |
| space available, the disk defragmenter won't completely defragment the |
| volume; instead, the utility will complete only a partial |
| defragmentation. Also, you can't defragment a drive that's marked as |
| possibly having errors (run |
| to resolve this problem). |
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