Windows 10 blue screen after Zemana antikeylogger install

http://bit.do/dRRyU Secret sale page at Zemana.
When i was re-installing Zemana antikeylogger 106, it had an error saying it could not modify keycrypt.sys so i took ownership of it then restarted. Then i had the blue screen and could only start in safe mode. The fix was using system restore