I looked all of the Internet, but never found an answer. Very often when I use (for example in "Notepad") some text such as "Save as" or "Delete" stays on my screen, after I have closed the application. I tried new graphic drivers and other Mhz settings. It's a mystery for me. Really appreciate your help.
This is an error with the explorer.exe file (your desktop). If you start Task manager and end this process, the text will go. Try to update Windows to its latest version. The actual cause of this is unknown and disappears automatically.