Bör man använda några underhållningsverktyg i Windows 7?

http://www.tune-up.com/

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TuneUp Registry Cleaner

Over the course of a computer’s lifetime, hundreds of entries (“values” and “keys”) are written to the registry database only to be removed once again. That happens thousands of times daily and leads to values and keys referring to files, file types, applications, folders, or startup programs that no longer exist. The result: huge errors in Windows®, not to mention debilitating system crashes. TuneUp Registry Cleaner solves all these problems by detecting and fixing registry errors such as:

Startup entries that a 3rd party application forgot to delete, which could lead to problems during startup
Invalid file type pointers, which could lead to problems while opening files
Orphaned entries within the list of installed applications, which could lead to trouble when installing or uninstalling

As with all the tools of TuneUp Utilities™ 2012, reliability always comes first. TuneUp Registry Cleaner only cleans those entries which are no longer required by Windows® or the user's programs.
TuneUp Registry Defrag

Your registry inevitably ends up being full of “gaps” upon cleaning, or simply using your PC. Over time, the Windows® registry continues to grow and grow (see Microsoft source on the right). TuneUp Registry Defrag performs complete registry restructuring and gets rid of all the gaps. This leads to fewer problems when accessing the database, as well as overall improved performance.
Edit the registry

TuneUp Utilities™ 2012 supports PC professionals with Windows® registry edits. TuneUp Registry Editor is more comprehensive and easier to use than Windows® own registry editor "regedit". It includes an easy-to-use search function, as well as an intuitive “Favorites” function that makes it simple to edit permissions. It’s foolproof, too, as unwanted changes can be easily corrected in the TuneUp Rescue Center.


http://www.tune-up.com/products/tune...your-registry/