EVERY TIME I TRY TO GET INTO WINDOWS DEFENDER I KEEP GETTING AN ERROR MESSAGE , "APPLICATION FAILED TO INITIALIZE: 0X80070006. THE HANDLE IS INVALID." I TRIED EVERYTHING , I EVEN TRIED TO REINSTALL THE WINDOWS DEFENDER. MY COMPUTER IS A GATEWAY , I JUST BOUGHT IT ABOUT TWO MONTHS AGO, I HAVE WINDOWS VISTA, I USE TREND MICRO ANTI-VIRUS AND I ALSO HAVE WEBROOT SPY SWEEPER. WHEN I BOUGHT THE COMPUTER I HAD GEEK SQUAD INSTALL THESE PROGRAMS AND A FEW OTHERS BUT MY COMPUTER WAS GIVING ME SOME PROBLEMS SO I TOOK IT BACK AND EXCHANGED IT FOR FOR A NEW ONE SO THEY DID THE SAME THINGS TO IT BUT THIS TIME THEY TOLD ME THAT MY WINDOWS DEFENDER WOULD BE TURNED OFF. I DIDNT SAY MUCH BECAUSE IM STILL NEW TO ALL THIS COMPUTER STUFF BUT THEY TOLD ME THAT I WOULDNT NEED TO WORRY ABOUT IT BECAUSE I HAVE SPY SWEEPER. BUT I NOW WANT TO REMOVE A COUPLE OF PROGRAMS FROM RUNNING AT START UP BUT THE ONLY WAY TO DO THIS IS THROUGH WINDOWS DEFENDER. PLEASE HELP ME , IVE BEEN TRYING TO FIX THIS FOR DAYS. THANK YOU.