User's Manual

What is Checked?
The following table shows you what areas of the registry TuneUp Registry Cleaner checks during the full
scan. You can select from these during the user-defined scan.
Area Description
Audible Sig-
nals
For certain system or program events such as error messages, sound files are played. These
are played by accessing the corresponding entries in the registry; however these entries are
invalid once the sound files no longer exist.
Startup Pro-
grams
Many programs start automatically together with Windows (e.g. virus scanner). This takes
place via entries in the startup section of the registry. When such programs are uninstalled,
these entries are often not deleted.
File Types
Entries in this area of the registry link one or more file extensions (e.g. .txt or .doc) with var-
ious information (such as the program that should be used to open them). Such entries can
become invalid through the uninstallation of programs, for example.
Database
Drivers
During installation, some programs store entries on database drivers and data sources in the
registry. These entries can become invalid through the uninstallation of these programs or
the moving or deletion of individual data sources. Often, invalid entries are created during
installation itself.
Common
Files
This part of the registry contains references to files and program libraries (DLLs), to which
several programs normally require access. When such programs are uninstalled, these
entries are often not deleted.
Help Files
Many programs record in the registry the location of their help files. When such programs
are uninstalled, these entries are often not deleted.
Installed Pro-
grams
Every program leaves behind an entry in this area of the registry. The list of all programs in
the Control Panel is compiled from these entries. When programs are uninstalled, these
entries are often not deleted and inconsistencies arise in this list.
Program Set-
tings
Each program installed on the computer can create entries with program-specific infor-
mation in the registry (e.g. data or program paths). When programs are uninstalled, these
entries are often not deleted.
Program
Extensions
This area of the registry contains references to extensions such as audio and video codecs
or Internet Explorer add-ons that enhance the functionality of individual programs (e.g.
with new menu entries or new toolbar entries). If these programs or extensions are unin-
stalled, these entries are often not deleted.
Program
Components
Many Windows programs access ActiveX and COM components using entries in this area of
the registry. These entries are created when programs like this are installed, but are often
not deleted during uninstallation. Some programs even create invalid entries during instal-
lation.
Program
Paths
The installation folders of some programs are stored in the registry to allow these pro-
grams to be run directly via "Start -> Run". When such programs are uninstalled, these
entries are often not deleted.
Fonts
Windows stores entries in this area of the registry for all fonts installed on your computer.
Since these entries are often not deleted when fonts are uninstalled, Windows tries in vain to
load these fonts every time the system starts up.
History Lists
Windows and many programs have history lists, which log, for example, which files you
were last working on. These are stored in the registry as references. By deleting or moving
the files, these entries become invalid.
Windows
Firewall
The Windows firewall saves the programs that may accept incoming network connections
and stores an entry for each one in the registry. These entries can become incorrect or
invalid if, for example, one of these programs is uninstalled.
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