I've been having this issue with my windows search for the last week since doing a clean install on my PC. Sometimes, when I try to search something up, the search would remain blank and have the blue dots rolling (it's working on something?) and no results would show. In order to fix this, I would have to end Cortana in task manager and wait for it to start back up.
Why is windows search hanging every now and then? Is there a way to permanently fix this so that I don't have to keep ending Cortana?