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Bad software Computers Windows 10

Fix Windows 10 High CPU Spike from KB4512941

If you are experiencing high cpu usage after Windows 10s KB4512941 update open the command prompt in administrator mode. To do this go to the start menu find the Command Prompt it is located under Windows Systems and right click to open in administrator mode. Once it is opened enter  taskkill /f /im SearchUI.exe and then cd C:\WINDOWS\System32 and finally move %windir%\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy %windir%\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy.000

That will remove cortana from the directory and prevent it from sucking up your CPU hopefully one day Microsoft will find a fix.

Reference: https://social.technet.microsoft.com/Forums/en-US/69406c72-e48e-49e1-8e0c-535642f2ee16/how-to-stop-searchuiexe?forum=win10itproapps