I just installed my new MaAfee Antivirus Plus 2010, after that I am unable to start my laptop in regular mode
Can't help - but I have the exact same problem! Have you cleaned any previous McAfee products from the laptop?
Is the computer restarting in safe mode or Last Known good configuration ?
Restart the computer and start tapping the F8 key and try to boot the computer in any of the advanced boot options.