User manual

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programs or documents first. All data in the memory of the computer is saved to the hard disk. If the
computer is turned back on again, you can continue from the point at which you broke off your work. All
previously opened windows, programs and documents are immediately restored.
Even if you do not require hibernation mode, the hibernation file takes up valuable disk space. It is
exactly the same size as your computer's memory. If, for example, your computer has 4 gigabytes of
memory, the hibernation file will also take up 4 gigabytes of space on your hard disk. This is because in
hibernation mode the entire content of the memory must be saved.
If you do not use hibernation mode, you can disable it here and thereby free up the disk space it would
otherwise use. You can of course reactivate it at any time.
Windows Messenger
Windows Messenger is a program that lets you exchange instant messages with friends. If you do not
use Windows Messenger, you can easily remove it from your computer here.
Index for Windows Desktop Search
Desktop Search is a Windows function that allows you to find files and folders quickly. It creates a
search index with entries for each file and folder. When you search for something (in Windows Explorer
or Outlook, for example), you search only this index instead of searching the entire hard disk. This
makes the process much quicker. Depending on the number of files on your hard disk, this index can
be quite large and may require lots of memory.
If you do not use Windows Desktop Search, then you can not only free up disk space by disabling the
feature, but also increase your computer's performance.
8.1.2. What Types of File are Recommended for Deletion?
AVG PC TuneUp searches for the following types of file which can normally be deleted from your hard disk
without causing problems.
Type
Description
Saved lost clusters
Repair programs like CHKDSK search your hard disk for lost clusters and save them.
These backups are usually never used by users.
Google Earth™
Cache Files
Google Earth™ uses this cache to save image data.
Internet Explorer,
Mozilla Firefox,
Opera and Safari
cache
All pictures, text and animations that you view in Internet Explorer while surfing the
Internet are saved in the cache. If you visit a website again, the text and images can be
loaded from the cache more quickly than from the Internet. However, it is advisable to
empty your cache from time to time.
Thumbnails
Thumbnails of images are used by various programs to provide a quick preview. The
thumbnail views used by Windows, ACDSee™ and Google Picasa™ are taken into
consideration.