I presume that that HDD is a second internal drive on that machine.
It will help a lot if you can post the screenshot of the Disk Management on that machine so that we can explore the possibility of getting it recognised. That will obviate the necessity of a recovery.
If you are keen on recovery then as Nigsy suggested you can try a Linux Live CD/pendrive. You can refer to the nice tutorial by Golden here Peppermint3 - Create Live CD/DVD/USB To Use For Emergency Backup
In any case please do post the screenshot.