At the end of August, a new Windows 10 update deployed. This is an optional update called KB4512941 (for build18362.329) meant to fix several bugs. Some users who have installed this new Windows 10 update are running into severe performance issues and if you feel like your Windows 10 is suddenly slower, you might want to uninstall it.
As reported by Windows Latest, the new Windows 10 update is causing large CPU spikes (30-40%) for some users who have installed it. Some users are even reporting 90% CPU usage and you can see some of the reports here and here. This is reportedly due to a buggy version of Cortana shipped with the latest update and you will see SearchUI.exe taking up way too much of your CPU resources.
At the time of writing, Microsoft has not acknowledged the problem and as per the report from Windows Latest, it turns out that before the update was shipped, this issue was reported by Insider Preview users. Thankfully, there are two fixes for this issue the new Windows 10 update reportedly causes.
First up, you can uninstall the update by following these simple steps below:
- Windows+I to open the Settings menu.
- Click the “Update & Security” option.
- On the Update & Security screen, click the “View update history” option.
- On the next screen, click the “Uninstall Updates” link.
- Select the update (KB4512941), and then click the “Uninstall” button.
If you want to keep the update installed, you can also fix the issue with a registry edit. However, messing about in the Windows 10 registry isn’t recommended unless you are an advanced user. Proceed with the steps below at your own risk.
- Head to the search menu and type “Regedit” then run the program.
- Find Computer\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\SearchReg
- Under the string BingSearchEnabled set the Reg Value to 0
Again, only use the above process if you know what you are doing.
Have you had any PC performance issues lately and have in recently installed a new Windows 10 update? Let us know in the comment section below.