blank black page with a bin in the top left hand corner

I have a blue screen problem. Don't know if I should post it here or not but here is my problem.

I have windows 8. I updated to 8.1. So far so good. That is until this morning. I don't know if this is in fact a Windows 8.1 issue or if anyone has ever experienced this before. I turned on the computer. I got the 'Hi' message followed by the next message of windows getting my apps updated. I then had a blank blue screen with a 'start' in the top left hand corner and an arrow in a box pointing to the next page. On the next page I had APPS on the top left hand corner and a blank box. I typed in 'desk top' even tho' that is not an 'app' as such. It took me to a blank black page with a bin in the top left hand corner. It looked liked my machine had been completely wiped. This has never happened before and I tried to Google it but the answers given did not have any correlation to what happened to me...any clues anyone?"