How to fix: Windows 10 Not Running at Full CPU Speed. In this tutorial you 'll find detailed instructions to resolve the CPU low speed issue in Windows 10 OS. But, when I ran the AIDA64 CPU stress test tool, I found that the CPU was not running at full speed in Windows 10, while in Windows 7 it was working at maximum speed.
After the OS upgrade, I proceeded – as I always do – to test the laptop's performance using the AIDA64 stressing tool. A few days ago, I upgraded one more laptop from Windows 7 to Windows 10.
