Disable Hibernation Mode

Windows places a file on your hard drive that it uses when your computer goes into hibernation mode. If you do not use hibernation mode, or your computer does not properly support it, you may want to disable hibernation and clear the file off your hard drive to free up some space (the file will use as much space as you have in physical memory, so if you have 1GB of RAM, it's going to use 1GB of your hard drive space). To disable Hibernation, follow these steps:

 1. Click 'Start->All Programs' then right click on
    "Command Prompt"
 2. From the context menu click on 'Run as administrator'
 3. If User Account Control prompts you to allow the action,
    click 'Continue'
 4. In the command prompt window type 'powercfg h off'
 5. Close the Command Prompt window

To delete the Hibernation file, follow these steps:

 1. Click 'Start->All Programs->Accessories->System Tools'
    then click 'Disk Cleanup'
 2. If prompted to choose a drive, select the drive in which
    Windows Vista is installed on and click 'OK'
 3. Disk Cleanup will scan the hard drive and present you with
    a list of options
 4. Check 'Hibernation File Cleaner' then click 'OK'
 5. When asked 'Are you sure you want to permanently delete
    these files?' click on the 'Delete Files' button