New
#51
iTunes & MS XML Core Services
I'd suggest the following:
Try downloading this patch from Microsoft:
Download MSXML 4.0 Service Pack 3 (Microsoft XML Core Services) from Official Microsoft Download Center
Get the msxml.msi download and save to your desktop then run it. Hopefully that should fix it.
As for iTunes - it's up to you. Try updating it or if you don't need it and won't lose any paid for music - uninstall it. Like I said before I know nothing about iTunes as I've always used alternatives!