says I can’t view hidden files

Hi I recently had my comp repaired at a shop. while it loaded all my files on the desktop when I started the comp at the shop (checking to repairs were done) it now doesn't show them at all on the desktop. It says I can't view hidden files and it's my desktop. I have clicked "show hidden files" then restarted the comp and yet it takes me right back to only these three items on my desktop >>google chrome, recycle bin & yahoo messenger.  That's it.  I am the administrator so why can't I view my files? how do I correct this? I have windows 10 and even contana won't work