Why can't I run my avast anti virus, iolo system mechanic, and mcafee security suite anymore?

Question

i have them both installed in my laptop. when i try to open the iolo system mechanic, it opens but the menus do not appear. I can't perform any task consequently. when I try to run my mcafee, it only pops up the window. Nothing appears anymore. and then my avast antivirus notifies me that their is error in loading the skin. It doesn't scan anything anymore. I think these all started when I tried to install a vista theme transformer. can you help me please?

Answer 1

Restart your PC in safe mode with networking

http://www.pchell.com/support/safemode.s...

Download, install and run a full scan with Malwarebytes

http://www.malwarebytes.org

Run a full scan with Micro Trend House Call

http://housecall.trendmicro.com/

After the scans, restart the PC and update your anti-virus, remember to only have one anti-virus installed on your PC

Answer 2

Best thing to do would be a system restore at this point.  Follow this guide to perform the system restore:

http://ultcomprepair.blogspot.com/2008/0...