Windows 10 updates are not always ‘smooth’. We have observed this on numerous occasions that a new update may introduce more problems than it really solves. With the latest Windows 10 Update (KB4515384), the start menu and the Windows desktop search fails to work for some users.
Microsoft sheds some light on this issue by explaining it as:
Microsoft is getting reports that a small number of users may not receive results when using Windows Desktop Search and may see high CPU usage from SearchUI.exe when searching after installing KB4512941. This issue is only encountered on devices in which searching the web from Windows Desktop Search has been disabled.
So, basically, if you fail to launch the start menu and cannot utilize the search functionality from the desktop, it becomes a big inconvenience. The CPU spiking issue with the first September update was nasty and it was not a pleasant experience for a lot of users. And, following the dreaded issue, the fix for that introduced another annoying problem.
Also, an interesting thing to note – the Windows desktop search issue was also encountered by some users in the previous update. So, it should have been fixed by now.
Even though Microsoft mentions ‘a small number of users’ are facing this issue, it clearly seems like a system-breaking issue. So, if you have not updated yet, we insist you wait it out – unless you are sure about what you are doing.
It does not look like Microsoft’s really into the game for ‘stable’ updates in this month. However, Microsoft did acknowledge this issue in their official documentation for known issues on Windows 10. As of now, there is no available fix for the issue. As per the official docs, they are currently investigating the issue and will provide an update when more information is available.