I've been backing up my old desktop to an external drive. The desktop has developed boot up issues and I'm not sure but may have expired. I'm now trying to access the backup file but can't identify what application I used to back it up (a victim of set it and forget it).

I've turned on file extensions in explorer and all I have to go on is the file name, no extension and 'file' in the type column.

I've tried Windows restore, Nero and am about to give Roxio a go. Possibly an OEM package used. TLI rings a bell but I can't find a reference. A search of forums hasn't thrown anything up.

Is there some way I can extract more information from the backup file to identify what package I should use to restore?

Cheers