Alright I will uninstall the windows software and re install it now.
Even better - install a good Linux distro which will be more secure and more private than any Windows system (as well as being open source). You might also find that lots of modern wallet software won't run properly on old versions of Windows.
This count as air gapped device but why not just invest on a hardwaware that is 100% air gapped like Keystone and Elipal instead of relying on an old PC that has the tendency of being not functional in future?
Why would an old PC not be functional? I have computers which are 20+ years old and still run just fine, whereas you can find reports of hardware wallets having their screens die after just a few years.