Clearly that is not the answer because I do NOT use Norton. They will reappear. Also, One Drive is not the answer either because I do NOT use it either..
For those of us, who use Windows, in my case I use Windows 10, and have Norton. I contacted Norton, and was told what to do, and it "WORKED"!!!! THEY ALSO STATED THAT THIS OCCURRED DURING THE TIME THAT THEY WERE DOING A BACK-UP, AND THE GREEN CHECK MARKS
INDICATED THAT MY APPLICATIONS ON MY DESKTOP WERE BACKED UP. MAYBE, YOU SHOULD CHECK WITH YOUR VIRUS/SECURITY SOFTWARE COMPANY. ALL I HAD TO DO WAS TO "UNCHECK" A SETTING IN NORTON.
WHAT OS AND SECURITY SOFTWARE ARE YOU USING?