A Microsoft Windows 10 update has broken search for a lot of computers. Windows search is now blank for any and all results when you try to do a search within Windows.
Fortunately Bleeping Computer has details on what happened and how to fix it.
“A bug in the Windows 10 Search is causing blank results to be shown in both the Start Menu and in File Explorer. This is making it impossible to search for and launch an application from the Start Menu.”