Windows 11 available on October 5

As long as you don't connect your WINXP PC to the internet, you can continue to use it with little risk. Connect to the net, then you've already been hacked regardless of what security software you have running. The question is if any of your other systems connected to the same router network have been compromised by using your WINXP machine as a gateway?

We have some WIN7 machines running due to software requirements at work, but are restricted to their own DMZ network allowing only internet access while having no access to our internal network.