Release notes for Windows Live OneCare beta
Beta release notes describe late-breaking issues, workarounds, and other important information you should know in order to install and run Windows Live OneCare beta successfully. Please read this page carefully.
Updated September 30, 2020
Windows Vista (codenamed "Longhorn") beta compatibility
- Currently, Windows Live OneCare can be installed only on PCs running Windows XP with Service Pack 2 (SP2).
If you install Windows Live OneCare and then upgrade your operating system to Windows Vista, Windows Live OneCare will not run on future restarts,
which will leave your computer unprotected. You can install and run Windows Live OneCare on a hard disk partition running Windows XP SP2 while
another partition has a different operating system such as Windows Vista. (This is known as "dual-booting.") However, Windows Live OneCare
will protect only the system and files on the Windows XP SP2 partition.
Windows Live OneCare beta testers who are also participating in the Windows Vista beta program will need to run Windows Live OneCare on a different
computer from the one running Longhorn. If you are in both betas and have only one computer, you will need to choose which beta
program you are more interested in. If you decide to participate in the Longhorn beta instead of the Windows Live OneCare beta, please complete
the opt-out survey during the removal of the Windows Live OneCare software. Please note "Decided to test Longhorn instead of Windows Live OneCare"
in your opt-out reply.
Virtual PC (VPC) compatibility
- Windows Live OneCare has not been tested with Virtual PC and is unsupported in VPC environments. Beta testers who choose to install
and run Windows Live OneCare on a virtual hard disk do so at their own risk. Behavior and stability is unknown, though intermittent VPC crashes
have been reported.
Windows XP Professional x64 Edition compatibility
- The x64-based version of Windows XP is not currently supported in Windows Live OneCare.
Before you install Windows Live OneCare, make sure you have reviewed the installation requirements.