I have a LaCie 2TB Rugged Thunderbolt Mobile HDD with a 1.8 TB partition and a 200GB partition that I had used for photos on an 11 year old Mac (around 300-400GB of data on it). I bought OneDrive to put the data on the cloud but the computer was so old that the webpage crashed when I tried to upload the files. I have a windows 10 PC that I knew could upload the data so I tried doing it form there. I then realised the partition ID was for Mac OS so I changed it to windows and made it my (G: ) drive. I then realized I had to format it. But since formatting it removed all the data on it and I don't want that. I tried going back on the Mac to back up the files but it needed to be formatted there as well. I am now stuck and I am wondering how to recover the files, back them up somewhere, format it, restore the data on it, and then upload it to the cloud on my windows device.
External HDD Link: https://www.bhphotovideo.com/c/product/1296182-REG/lacie_stev2000400_2tb_rugged_usb_3_0_thunderbolt.html
Screenshot of Disk Management: https://imgur.com/a/0eyye7K
External HDD Link: https://www.bhphotovideo.com/c/product/1296182-REG/lacie_stev2000400_2tb_rugged_usb_3_0_thunderbolt.html
Screenshot of Disk Management: https://imgur.com/a/0eyye7K