Feedback, Complaints or Problems

All of a sudden a bunch of my trainers don't work. When I try to launch them I get an error that says, "Could not install the file - Installtion failed" This includes trainers that have been on my computer for a while and worked just fine a few weeks ago. Disabling my antivirus and firewall and running as administrator doesn't seem to have any effect.

Please attempt the reinstallation of the .NET framework version 4.0:

Link

Ok I repaired .NET framework version 4.0 twice and it still doing the same thing. I'm reluctant to try uninstalling and reinstalling it do you think that will make a difference?

Try completely uninstalling all AV, firewall and other security software.

Run the follow command at the command line as administrator:

sfc /scannow

Hate to bumb the thread but I get the same problem. .net 4 is the current version, not an AV problem and there was no integrity violation problems detected.