Windows libraries problem

Someone posted the following problem and the discussion was closed but I never saw an answer:

so i downloaded windows 8 and all was well. after about 3 weeks, i cant access any of my documents, photos, videos or music. the files that they would otherwise go under will not work. so pretty much i cant do anything with my files i get the error message:

documents.library.ms is no longer working. this libary can safely be deleted from the computer. forders that have been included will not be affected.

My specs:
64 bit
windows 8

I am having the exact same problem. I can not access any of my documents which I use for work. Help!