Tuesday, April 12, 2011

Can't install .net framework 3.5? Solved

Many people can't install .net framework 3.5. And I was one of them. After many attempts I solved the issue.
Then follow these steps:
  1. Download "Free Uninstaller 1.1" form this link: http://www.softpedia.com/get/Tweak/Uninstallers/Free-Uninstaller.shtml
  2. Free Uninstaller 1.1 is a zip package.  Doesn't need installation.
  3. Double click on it and lauch file fun.exe
  4. Will appear some registry keys red highlighted on the top of the window
  5. The red highlighted registry keys are invalid registry keys. Remove them.
  6. Download the updated Aaron Stebner "dotfix cleanup tool" from here  in the page top left and launch it. This tool clean your system from any net. framework trace. After cleanup you can safely install the .net framework 3.5. 
Same thing if you can't install net framework 4.0


  1. Thank you so much! I couldn't install ANY version of .NET Framework and now it's working again thanks to you!

  2. fantastic !
    went to Chile from Denmark and experienced that the delivered pc could not install :NET 3.5
    searched and found a lot of "hard jobs" nothing worked.
    was preparing a courrier to send a new pc down - but found your easy fix and now it is running smoothly.
    Thank you very much - HIGHLY appreciated.