Anybody know how to disable the chicken bit on Windows? They're not planning to ...

JDW1023 · on July 26, 2023

It seems like there's an wrmsr (write MSR) tool for Windows [0]. I don't know whether it will work the same way as the linux verison.

attentive · on July 26, 2023

That's atrocious. Looks like microsoft doesn't care about AMD CPU as much as AMD doesn't care about windows.

As far as I can see there is no easy way to use MSR on windows.

attentive · on July 30, 2023

I may be missing something, but since it basically exploits AVX that is easy to disable in win10.

bcdedit /set xsavedisable 1

and then reboot.

At least it fails the zenbleed POC.