I installed MBAM on a clean win 8.1 64bit oem install on an ssd. I can get it to run, update and scan after install, but if I close the program and try to open it again by double clicking, it doesn't open. I've uninstalled using advanced uninstaller and restarted, deleted registry remnants. Reinstalled. Still nothing. Can't think of what's going on. Can you? Anyone having/had this problem? P.S. Running latest KAV 2014 on default settings.