I have Win7 Home Premium 64 bit I did a Windows Backup to a DVD-R and got the message: The backup was completed, but some files were skipped. Backup encountered a problem while backing up a file: C:|users\EmrysDavies\Documents\OneNote Notebooks. Error: (The system cannot find the file specified (0x80070002) In 'Documents' I have: OneNote Notebooks (Empty) and underneath that entry is 'This folder is unavailable'. I have done a 'Restore to an earlier time' ( 15th Feb.maximum) but without success. Any ideas?