Question HPET was OFF by default on a fresh Windows 11 install ?

[Geoff Leven]

So I was trying to do some comparisons of gaming for latency/fps having HPET off/on, but then I found HPET was off by default. Isn't it supposed to be on by default?

Secondly, when I do turn it on then reboot, Windows 11 became very sluggish to the point of being unusable ?

Specs:
OS: Windows 11 Pro
MAINBOARD: Gigabyte Z790 Gaming X AX
CPU: i9 13900KF
CPU Cooler: Corsair H100i
RAM: 32GB Corsair Dominator Platinum 7200mhz
VIDEO CARD: Gigabyte Gaming 24gb OC RTX 4090
MOUSE: Logitech Gaming 300s
KB: Corsair K70 MK.2
Xbox Elite2 Gaming Controller
MONITOR: AW3423DW, 27GL850
HDD: Kingston KC3000 2TB
HDD: Samsung NVMe M.2 Evo Plus 970 1TB
Power: Silverstone ST1200w Platinum

 

[helpstar]

update your motherboard`s bios

 

[Ralston18]

When HPET is off look in Task Manager and Resource Monitor to get a sense of what all is running on the system, what resources are being used, to what extent ( % ), and what is using any given resource.

Then do the same with HPET on.

Look for what, if anything, changed.

With the system becoming very sluggish there is a strong likelihood that you will spot some potential culprit.

Or at least the affected component(s).