Imagine this scenario: you are busy working on your brand new Windows
Vista powered laptop and just when you turn around for a minute, the
operating system is short of a few
features. Well, this is a tad exaggerated, to be honest.
However, it does not mean that indeed you cannot find features missing
from Windows Vista.
Microsoft has even issued a Knowledge Base article addressing an issue
associated with the use of the Disk Cleanup Tool. According to
Microsoft, the hybrid sleep and hibernation features can become
unavailable following the use of the Disk Cleanup Tool. “After you use
the Disk Cleanup Tool in Windows Vista, you may experience the
following symptoms: you cannot see the Hibernate option in Power
Options, when you use the sleep feature, the computer does not recover
its settings if power is lost,” informs the KB article.
This issue is a direct result of the way the Disk Cleanup Tool manages
the hibernation file. In order to perform its actions, the Disk Cleanup
Tool has to turn off the hibernation file. Without the enabled
hibernation file, Windows Vista can no longer access the hybrid sleep
and the hibernation features.
“When the hibernation file is disabled, and the hybrid sleep feature is
enabled, a backup of open programs and open files will not be saved to
the disk when you use the sleep feature in Windows Vista. Additionally,
if the computer loses power while the Windows is in sleep mode, open
programs and open files will not be recovered, and any unsaved work
will be lost,” also reads the KB article.
The solution for this predicament is rather simple. All you have to do
is type the “powercfg -h on” command in a command prompt. The command
will enable both the hibernate and the hybrid sleep features. “powercfg
-h on” has to be run with administrative privileges.
