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I am encountering this very strange bug. If I use Aida64 Cache&Memory Benchmark in Windows 10 I get a specific Ram benchmark result, let's say 48100 MB/s read / 53600 MB/s write / 47700 MB/s copy and 52 ns latency. However, if I am booting from an USB live Windows 10 CD (WinPE), I am getting drastically better results, such as 55000 MB/s read / 61300 MB/s write / 55000 MB/s copy / 45 ns latency. I am not changing any bios / RAM XMP / Ram memory timings settings between reboots, only booting from either main Win 10 installation or WinPE 10 live usb. I am using the same Aida64 version in both cases. I am scratching my head, what can explain the huge difference between the results? In both cases, cpu usage is idle and no other background programs are running when doing the tests.