Disables the L1 Terminal Fault hyperthreading mitigation, which costs ~10-15% in HT-heavy workloads on affected Intel CPUs. Per Microsoft's KB, only relevant for hosts running untrusted guest VMs.
MaxTweaks applies this tweak with one click and snapshots your original setting first, so you can revert it cleanly at any time. A System Restore point is offered before batch changes, and every tweak links to its official source.
Get MaxTweaksOfficial documentation: https://learn.microsoft.com/en-us/troubleshoot/windows-server/security/protect-against-speculative-execution-vulnerabilities