You could try using your backup discs. (You do backup your files when your PC reminds you, don't you?) I recently deleted a few files - that I had created, by the way, so I thought that "I created them, I can delete them" - but then discovered that I could not access Microsoft Works Word Processor. Imagine my dismay. Neither could I access documents that I had typed on Word Processor. I went on to the Backup and Restore page and used the backup discs as instructed by the PC, and, after the best part of an hour, it worked! Best of luck.