MalwareBytes is great, but you still need antivirus as well *and* ways to mitigate any holes that are going to be unpatched and neither of those two type of products may detect or detect in time (reactive technology.)
The end of support for XP desktop has been known for years and was changed once several years ago to a later date (was originally December 31, 2011.)
I use Windows 8.1 daily - no touch screen.
no offense, but if you were the one working on the Windows 7 system, you may not have known what to do in order to make it run better (yes, better) than Windows XP could. :-)
There are many versions of Windows. XP still will exist for quite some time, just not patched. Just like those still running Windows 98 and Windows 2000. Heh