I will start off gently. Windows has by default AMD and Intel CPU drivers installed as far as my knowledge goes. Everyone here knows how to access the registry In windows registry go to this path Here you will find numerous services. Each service contains a key 1 = Boot 2 = ... 3 = Load on demand 4 = Disable To disable eg UAC driver do the following: Search for LUAFV Only do this if you have UAC disabled of course. Now I notice these drivers: amdppm intelppm Both are processor drivers. My laptop has a i7 720QM which processor driver do I need? Because my CPU falls under amd64 running as 64bit Windows Can I safely disable amdppm? Are there other services I can disable ?