MS Excel 2013

​When I open Excel from a complete computer shutdown all my (recent files) are gone. I found them but have to add them individually again. While the computer sleeps there is no issue only after complete shutdown

This only happened since I downloaded and started CCLeaner.

Anyone having this similar problem or any ideas how to resolve this issue?

in CCleaner, click on the Applications tab and make sure Office 2013 is not ticked.