A:Answer Windows 7, sure. You might need to an x64 system in win7 not x86 to read 7.68tb (8tb formatted).
Win XP, nope. But if you want to do something like back data up, you can network the XP and Win7 system to your network router or a $10-20 unmanaged 4-8 port switch.
Then you can keep the drive on the x64 win7 machine and use network sharing from the XP system to the win & system.
make a user named test, ps 1234, etc, on both machines. log in to both. make sure each system is on a domain(network) named, WORKGROUP as it usually is.
Share the new 8tb drive as say x y or z as it's letter. plug in the drive into the win7 x64 system, right click my computer, manage. right click the usb drive and change drive letter to one of those last unused letters.then in the options allow read and write to it.
sometimes in networking you have to tweak a bit for XP to be able to talk to win8,8.1, or 10, but 7 x64 is easy with xp.
either do all of that, or just buy a 256gb usb3 key on sale and move data like that.