How can I backup my Windows 10 license? I am planning on replacing my HDD because it\’s almost full. Would it be possible if I can get the key to work on x64? By the way, I am running x86. I am planning to upgrade my memory as well. A big thanks!
If you already have a key on hand, you can use that. Worst case, you may be able to retrieve the key using a tool. Keys do NOT distinguish between 32-bit and 64-bit installs. You just need to make sure you have 64-bit install media.