Double-Click to open my Folders doesn't work

Can anybody help?
I really don’t know how to solve this, but when I double click on any folder, it doesn’t open!?
Can anyone help me? I’m really confused right now… :frowning:

Could it possibly be this issue here, caused by Nvidia Shadowplay?

Thank you very much, it helped!

Brilliant, that’s great to hear! Can you mark my answer as correct to make it easier for other people to see? :slight_smile: