You need to run the following commands on the command line in Windows to enable or disable the exclusive use of the HPET timer.https://www.ghacks.net/2013/04/18/try-changing-hpet-settings-to-improve-your-pcs-performance/
- Tap on the Windows-key, enter cmd, right-click cmd.exe in the results listing and select to run the command prompt with administrative privileges.
- To enable HPET as the only timer run the command:
bcdedit /set useplatformclock true
- To disable HPET in Windows run the command:
bcdedit /deletevalue useplatformclock
AnandTech article about impact of High Performance Event Timer (HPET)
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