hard disk corrupt

[Viplove Bishnoi]

've got a 2TB external hard drive with about 1.5TBs of data on it. One day when I plugged it into my laptop, windows didn't recognize it and wanted me to format it in order to lose it. I really don't want to lose all of my stuff, can anyone please help? I've already searched around a bit, and tried using the chkdsk command, but it didn't help and I really have no idea what I'm doing. i installed and tried a few recovery programs but when they try to scan it. It responds that i cant use it as it it needs a format first. Please help me... its a wd and disk management shows the drive allocated and it allready given a drive letter

 

[Maxime506]

What's the brand and the model of your external HDD?

 

[Dark Lord of Tech]

Does disk management see it.If it does , assign it a drive letter and see if that works.Don't format.