by X-Ray Application Software. Get Shutdown Lock and enable hibernate and stand by feature in application, like FlashGet, Use Windows XP fast user switching feature more safety, prevent unexpected system shutdowns or restarts that could immense and sensitive data loss.
by Software777 While you have hibernation enabled Windows creates big files that occupy your disk space on c: without any reason. Having more free space on the drive where Windows is installed means that Windows will run better.