Trying to recover previous hard drive

[Alan11]

Hey All

I'm trying to recover a previous hard drive, but it said "Failed to scan the following hard drive

//.HardDiskVolume2 Unable to determine file system type"

How do I Recover it. Right now, I'm on Windows 10

[Andavari]

If the HDD is in the RAW format which Windows sees as un-formatted and unusable you "may be able to undo" that using a 3rd party freeware disk partitioning software. You'll have to read the feature list it states it has to see if undoing RAW format is an option in the freeware version, otherwise you'd have to pay money to get that feature and it may or may not help in your situation.

Note that the Disk Management tool in Windows can't do that, it will want to format the disk which would make recovery more difficult.

Edit:
Also, if using Windows 10 gets in the way of what a freeware disk partitioning tool wants to do you may have to try on an older version of Windows on an old computer if it's available to you such as WinXP, Win7, etc.