I use TuneUp since the 2007 version in XP and Vista 2008 and 2009 and 2010 with Seven and I have never encountered any problems. The 2010 version is perfectly integrated with Seven. Cleaning the registry is effective and I have not found error in the choice of obsolete keys he offers to "clean". This version offers new convenient features to configure a variety, although the features in question can be changed with the options embedded in Seven, TuneUp saves valuable time and avoiding multiple always tedious maneuvers Windows.