We run schedules backups using Windows 7 backup tool. After backup we compress the file using WinZip. The backup file is usually around 4 to 5 gb large. On the last backup we checked if it was ok by extracting the contents and copying the actual zip file to another drive; both worked perfectly. Yesterday we needed to extract this backup and it failed. See attached pic all messages given. We proceeded to move or copy the zipped file and it fails; hence, it could be the hard disk. We then proceeded to run check-disk and effectively there were drives errors, but were fixed by the tool. Now I can copy and move the zipped file, but still can't extract the contents. Please see the pic and helps determine whats the problem and how can we extract the backup contents. (if question is wrong zone, please moderator move to according zone).