Ive gotten here just trying to get GPS working.
Or common lists of non working fixes for common Windows 10 problems.
If you just want the fastest search possible, and only need file searches, try a free third-party search program such as Everything or UltraSearch.
The program may replace the Windows 10 Start Menu with a classic copy that resembles the Windows 7 start menu, and provides you with a search alternative as well. One option is provided by Classic Shell for instance. If search is not working correctly no matter what you do, you can switch to a third-party search program instead to run all your searches. Option 3: Switch to a different search tool
I suggest you create a backup of the system partition before you run the command. Note: This registers all default Windows Apps again, not only Cortana. This can be the case if corruption occurred for instance. If Cortana is the culprit, and terminating Cortana does not help, then you may need to register Cortana again.