WD My Book 2 TB - message: The Disk is not formated. Do you want to format it?

Hello everybody here!

I have big trouble with my external 2 TB WD. I was working with it (making copy of some files) and an error appears. After i stoped the disk and started it again, there was a new message: Your disk is not formated. Do you want to format it now?

The disk is full of files i don’t want to loose. I’ve tested the disk with HDD Regenerator, and there are no any corrupted sectors on it. Can anybody tell me if i have a chance to solve the problem without formating it and loosing all my files. Thank you in advance!

What OS are you using and does the drive show in Disk Management?

Joe