High CPU usage due to Performance Monitor (perfmon.exe) in Windows can be caused by many factors. Here are working solutions to fix the issue.

In the latest update to Windows 11 24H2—patch KB5058411 which rolled out earlier in May—Microsoft made a quiet change to how Task Manager calculates CPU usage in the “Processes” tab ...

Once SQL Server is installed and all windows are closed, the CPU usage never drops below 20% in VMM. I was puzzled by this for some time, probably longer than I should have been.

I once had an issue with Indexing Service going daft when it encountered a corrupted ZIP file. It started using 80% of one CPU on a dual box until we restarted the service.

AMD’s EPYC 4585PX triples the performance of its old flagship, challenging assumptions about what affordable server CPUs can ...

Windows Error Reporting (WerFault.exe) high CPU, Disk, Memory usage could be due to system file issues, amongst other reasons. Here are the working fixes.

If you're having periodic spikes of high CPU usage, a recent Windows match may help solve the problem.

HWiNFO is one of the best free hardware monitoring tools. The latest version of the software has fixed legacy CPU usage reading on Windows 11, a kernel-mode hardware stack driver bug, and more.

Microsoft has updated its Windows Health Dashboard documentation with details about a newly found bug. According to Microsoft, File Explorer in Windows 11 may cause higher CPU usage.

Microsoft is set to start charging businesses $1.50 per CPU core each month for a new way to install security updates on Windows Server 2025.

Hotpatching for Windows Server 2025 has been free while in preview, but when the option leaves preview in July, it will cost $1.50 per CPU core per month.