I had to change laptops and swapped their hard drives and because of this, I had to install win 10 again using a bootable usb drive.

Unfortunately, I didn't have any usb drive with a decent size and I had to use my external hard drive (where I had some tv shows inside) for the bootable usb with Win 10.

Is it possible to make it a normal hard drive again without formatting (and not lose my original content)?

Thanks in advance!