Thanks for the response. I tried installing Advanced_Duplicate_Find_&_Fix 3.7.4 and got the following error message: "C:\Users\user\AppData\Local\Temp\uYoShVdn.mmip.part could not be saved, because the source file could not be read. Try again later, or contact the server administrator."
I should mention that I have administrator privileges on my PC. Any idea how to solve this? Thanks