I have Microsoft Windows XP Media Center Edition Version 2002 Service Pack 3. I have checked my system under ADD OR REMOVE PROGRAMS and I have a lot of updates:
Security Updates and updates for 2007 Microsoft Office products
Security Updates and updates for Microsoft Internet Explorer 8
Security Updates and updates for Microsoft Windows XP
Security Updates and Updates for Windows Media Center Edition 2005
Older Service Pack updates (Windows XP, Office, etc.)
My Questions: Since they use up so much space, can any of these files be removed using the ADD OR REMOVE PROGRAMS feature? Aren't they already installed or would deleting them make them unsecure against the threats they were supposed to fix?