From en.secnews.gr
Recently microsoft informed her support page , informing its users of the issues they are facing Windows 10, and in particular with the CPU, after the release of the KB4512941 update that was released on August 30.
Some of them users Windows 10 devices said they were experiencing high CPU usage after installing the latest update and some results are not displayed in Windows Search. Microsoft says these issues are related to SearchUI.exe and only appear to users who have turned off search on Web using Windows Search.