hmm is there anyway i can re-add windows defender?? atm i have the folder of it..the .reg keys...using another registry key i re-added the service.. but now when i open i get a error Application failed to initilize error 0x8006106BA. A problem caused this programs service to stop.i tried starting the WD service in services.msc but it had error 1053:the service did not respond to the start or control request in a timely fashion.... WD service seems to be svchost.exe which there is only 1 off in sys32 and im not sure i should replace it... any help? suggestions