My computer doesn't meet the installation requirements for Windows Live OneCare
If your computer doesn't meet the installation requirements for Windows Live OneCare, you may receive an error message, and be unable to install Windows Live OneCare. Here are some common problems and the steps you can take to correct them:
Only an administrator (An account that allows a user to perform actions that require special rights on a computer. A user with a computer administrator account can create, delete, and change all user accounts on the computer.
) can install programs from the Internet. To see if your user account has administrator privileges:
On the Start menu, click Control Panel, and then double-click User Accounts.
In the Users for this computer list, check whether Administrators appears in the Group column next to your user account.
If your user account isn't a member of the Administrators group, log off, and log on again with an account that does have administrator privileges.
To install Windows Live OneCare, your must have Microsoft Windows XP Service Pack 2 or a later service pack installed. If you're running Microsoft Windows XP, but have not installed Service Pack 2, go to the Windows XP Service Pack 2 home page for more information.
To see if your computer is ready to install Service Pack 2, go to the Windows Update website. Windows Update will scan your computer. If it lists Microsoft Windows XP Service Pack 2 as an available update, your computer is ready for Service Pack 2.
You can install only one copy of Windows Live OneCare at a time. If your computer already has an old or expired version of Windows Live OneCare installed, uninstall the old version before installing the new one. For help with uninstalling Windows Live OneCare, see: Install or reinstall Windows Live OneCare.
To install Windows Live OneCare, you must be using the US English version of Microsoft Windows XP Service Pack 2. If you're using another version of Microsoft Windows XP, you receive a "not available" message and can't install Windows Live OneCare.
To use the Windows Live OneCare Backup feature, your computer must have a valid backup device installed, such as a disc burner or external hard drive. If you don't have such a device, you can continue installing Windows Live OneCare, but you won't be able to back up your files. You can add a backup device later and then begin backing up your files.
You can only install Windows Live OneCare on a computer running Microsoft Windows XP Service Pack 2. You can't install Windows Live OneCare on a computer that runs Microsoft Windows Vista or a 64-bit version of Microsoft Windows XP.