Windows XP .... this thing is meant for the recyclers at this point. You are asking for trouble if you try to connect to the internet, web, etc. Microsoft has basically abandoned providing an more security patches or fixes, and vulnerabilities are many.
In any case the problems you are seeing now means you probably need to reinstall windows XP. But that is not an advised thing to do for any system at this time. It wouldn't take long for you end up on some site that corrupted your XP and be back to where you are now.