Mitch Ansar

I have Windows 7 64 bit Intel cor I7-3770 @ 3.40 MHZ with 16.0 GB or ram. SL and Windows 7 started of great till last few months it keeps crashing . Systems are :blue screen It only does it with any SL viewers Im at a lost is SL program not suitable for 64 bit Windows 7 computers? I have tried: changing Ram around,different viewers,Changing to other network,Antivirus on/off, looking at all drivers, still Im at loss to what it is.