So before you make any changes, please make sure that you have backed up your Registryfirst.ġ) Press Windows key and R at them same time, and then type in the search box regedit and hit Enter.

WARNING: Faulty modifying settings in Registry Editor could cause irretrievable errors to your system. Option Three: Disable Windows Notification Option Two: Modify Lock Screen Background Option One: Modify Settings in Registry Editor To fix your system high CPU usage problem, please try the following methods below: In such case, we are to introduce some common work-arounds that have helped so many others. However, the causes of this are rather varied: it could be related to OneDrive, Background Task Infrastructure Service, Windows spotlight or other apps.īut there has not a hotfix from Microsoft that works on all computers under all environments. High system CPU usage is not a problem you should neglect. We find that the system CPU usage would go as high as 98%, sometimes even 100% in Windows 10 out of no apparent reasons.