Minecraft doesn't mess up your computer. Minecraft is a malware free program.
Ya minecraft may mess up your PC because that software doesnt have SSL certificate's.which is used for secure transaction.
It depends on what computer you have for wizard101 to mess up your computer.
depends on what you download can limewire mess up your computer
if you use it improperly, it can very well mess up your computer.
NO
No it cannot
Not that I know of, but it might mess up your game if you input too much.
If the Windows is messed up, then yes. It will mess the computer up.
No
yes it can
No.