PerfMon Troubleshooting - raiguard/ModernGadgets GitHub Wiki

PerfMon is one of the many resources that ModernGadgets uses to get system information. More specifically, in Disks Meter and Process Meter, PerfMon is used for the majority of the measures.

A common issue that users have is that the PerfMon database will become "corrupted" and the information shown by the gadgets will be broken / wildly inaccurate. If you find this to be the case, follow these steps.

First, open Command Prompt or PowerShell as administrator. Type in the following, in order:

cd c:\windows\system32
lodctr /R
cd c:\windows\sysWOW64
lodctr /R

You should then see Info: Successfully rebuilt performance counter setting from system backup store

Overall, it should look like this:

If either of the lodctr /R commands throw an error, simply do it again and it should work the second time around.

Once you've done this, refresh (middle-click) the affected gadgets, and everything should be working! If it doesn't work right away, try rebooting your PC.