I upgraded my PC to Windows 10 just over a week ago and have been doing various tests to see how it performs compared to Windows 7. I found that when running benchmarks like 3DMark that CPU scores are substantially worse since upgrading to Windows 10. I ran Prime95 and found that according to Task Manager, CPU utilisation reaches a maximum of 93% with all 4 cores running Prime95 threads. Task Manager also only reports the CPU clock speed at 2.76GHz instead of 3GHz. It's like Windows 10 thinks that the CPU is slower than it is and is only scheduling enough work for it to reach a maximum of 93%. PC Specs: Core 2 Quad Q9650 8GB DDR2-800 ASUS P5Q-SE/R motherboard Geforce GTX 660 Ti Has anyone seen this before? Thanks.