|What you are seeing are only the shortcuts of an executable file of a virus (namely autorun virus) and named after each of your documents that are 'missing'. The files you're looking for are there, but their attributes are set to hidden and system so you can only see them only if these conditions are met:|
- your folder view is set to show hidden and system files
- the virus program stops running (have to clean this virus first using an external antivirus)
- or you run this command in the command prompt:
attrib -s -r -h a. /s
run in the folder where you're files are in.
This attribute change however, will be temporary IF the virus is still active and continually changing your documents to shortcuts as it did.
I post a blog about free virus protection, in case you are interested.