Yeah, that backup is your safety net, but to fix the error, can you check if you have any non-essential external devices like printers or USB drives disconnected during the upgrade?
You could also try temporarily disconnecting any non-essential peripherals, like extra monitors or printers, as they can sometimes interfere with the upgrade process.
Yeah, that backup is definitely your best safety net. One extra tip: temporarily disconnect any non-essential USB devices before trying the upgrade again, as they can sometimes cause that error. Let me know if that works.
+1 Agreed, that's solid advice. Also, double-check you have all Windows Updates installed for Windows 10 first—it can resolve a lot of underlying compatibility issues.