I just had someone install a fresh clean full version of Windows 2000 Professional NT on my computer. When I was trying to install Adobe Acrobat 6 on my computer, it said it needed to have Win2k Service Pack 2, meaning I have to go to Windows Update and download the latest service pack, correct? However, the problem is, what is included in the updated service pack? I would like to update my Windows 2K but I'm just afraid that if something screws up really bad in the updating process, I may have to buy or have someone reinstall Win2k again, since I don't have the Win2K disk nor the user/serial number. Updating my windows service pack is safe and easy and won't require me to enter a user/serial number right?