Windows Search Function does not find existing folders (and files)

I am trying to find some folders using the search function in Windows 10. But it seemingly does not find folders even though they are definitely there. Suggestions are very much appreciated.

Solution 1:

1. Make sure the location you are searching is in the Index Locations to be searched. If not there, add the location using the Modify button and rebuild the index.

2. Make sure you are not trying to index Program Files and Windows. Those are secured folders and indexing these does not work .

3. If the location in not indexed and you wish to find something, open Windows File Explorer, navigate to the top location of the file / folder you wish to find and search using the top right search icon. That is very handy.