Solution: Ended the Explorer process and restart
- You can open the Task Manager using the key combination [Ctrl] + [Alt] + [Del].
- Next you need to click in Task Manager on "file" and then select "run New Task".
- Here you can enter the command "explorer.exe" (without the quotation marks) and confirm via the "OK"Button.
- Now the task appears bar again and you can open folders and files as usual.

Explorer process terminates?
Takes you to the preview window in Windows Explorer to much space, you can use the preview images are quite clear.
