Cannot find disc on Windows explorer

Thanks for the feedback. The disk shows up in Device Mangager and states that it is working properly.

But I simply cannot just reformat the disk without knowing that all possible causes are determined and tests are done to open the data. If anyone has other things I could try, I would be greatfull to hear.

If not, I think I need to find other supplyers thatn WE for my next hard drive.  This is supposed to be my back-up drive.