User's Manual

What Types of File are Suggested for Deletion?
TuneUp Utilities 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 such as CHKDSK scan your hard disk for lost clusters and save them as files.
These backups are rarely used.
Google Earth
cache files
Google Earth uses this cache to save image data.
Explorer,
Mozilla
Firefox, Opera
and Safari
Cache
All images, text and animations that you view in Internet Explorer while surfing the Internet
are saved to 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.
Recycle Bin All files in the Recycle Bin can be deleted if you really do not need them.
Log files
Many programs write log files that can be used to analyze their behavior. This can be helpful,
for example, when trying to solve problems. Any log files that you do not plan on evaluating
can be deleted.
Backups
Many programs automatically create backups of your files. These can be deleted if you do not
need them.
Memory
dump files
When problems with an application occur, for troubleshooting purposes Windows saves the
portion of the memory used by the application in question to a file. These files are
unnecessary and can be deleted.
Temporary
files
These are used by different programs to temporarily store data and should normally be
deleted by the program after its tasks are complete. These files can always be deleted.
Temporary
help files
These files are used to display help files more quickly.
Temporary
installation
files
These are used by many Microsoft installation programs to store data temporarily and should
normally be deleted by the program after its tasks are complete. These files can always be
deleted.
Windows error
report files
When a program crashes, Windows saves data about the program. If this service has been
disabled or if settings do not allow for information to be sent to the manufacturer, these files
can be deleted.
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