I installed Windows 10 enterprise for about a week, right after I disabled all the ugly spying stuff!
Now the simple search of it, won't work.
Found thousands of others like myself having similar issues, some issues were older, on the older releases, I'm using the latest 10240 In other hand some had AV issues, but I didn't install any security stuff yet! And near all opened topics were still ongoing...
The option for simply disabling defender doesn't work and it keeps re-enabling itself! Maybe without disabling some privacy stuff the issue happens for other people, or probably they did some similar tasks, I experienced it after disabling these. The search seemed was working randomly and slowly and eventually it becomes dead. really nothing happened against it! As a computer expert and a programmer I can't even guess what the problem might be. (Sorry that I do not want to re-enable them to see what will happen!, in both sides if they work or not work, it is a shame)
When you click on the search and try typing it shows that it is thinking and searching but the progress never ends!
By privacy tweaks I didn't mean I did anything special, I only disabled the options I had: Cortana!, Windows defender, what I type, report Microsoft, Sharing Location, Search online, Get to know me!, etc.
Does anybody have a final solution to this?
Someone/"some post" like me: Windows 10 Search not working
Another similar: Cortana Search is not finding applications on Windows 10
Comment to the last link: the original asker told that it isn't solved for him! His comment yesterday on the marked answer:
Yeah, exactly. I still am having issues with this. At this point I think this is a bug in Windows 10 and will hopefully be fixed as a patch. I may as well mark this as the fix, even though it is not 100%
Windows installation is a routine task for me, so as I said earlier, I didn't still do anything especial on it.