Googoo,
I was able to duplicate your situation by using the hotkey for 'find all files', (pressing the 'windows key' plus the letter F)
I held them down for a couple seconds and had at least 75 "find all file' pop ups boiling over in my toolbar. And it was a hassle deleting them all ....
Check that you don't have anymore sugar around your 'windows' key, and the letter F,
The windows key has the windows logo on it.
Use 70% isopropyl alcohol to swab those areas
How To Clean Keyboard

I was able to duplicate your situation by using the hotkey for 'find all files', (pressing the 'windows key' plus the letter F)
I held them down for a couple seconds and had at least 75 "find all file' pop ups boiling over in my toolbar. And it was a hassle deleting them all ....
Check that you don't have anymore sugar around your 'windows' key, and the letter F,
The windows key has the windows logo on it.
Use 70% isopropyl alcohol to swab those areas
How To Clean Keyboard