Windows Live OneCare FAQ – Part III

In recent weeks readers have sent us the following questions about Windows Live OneCare. This is the third in the series. For more questions, see Windows Live OneCare FAQ Part I and Windows Live OneCare FAQ Part II. 


Q: I have both Windows Defender and OneCare and I run Windows Vista. Do I need Windows Defender?


A: OneCare and Windows Vista both include Windows Defender. OneCare automatically turns off Windows Defender so that you don’t get repeating messages. For more information, see Does Windows Live OneCare include Windows Defender?


Q: Do I need to open OneCare every time I go online?

A: No. After you download, install, and configure OneCare, it is always on. OneCare works quietly in the background on your computer to protect against viruses, spyware, hackers, and other unwanted intruders.


Q: Can I use OneCare and other antispyware programs?

A: OneCare includes Windows Defender, the Microsoft antispyware solution. Before you install Windows Live OneCare, you should disable or uninstall other security-related programs.

If you use more than one brand of antispyware program at the same time, your computer might suffer from decreased performance, become unstable, or restart unexpectedly. Note: If you already have Windows Defender, you do not need to uninstall it before you install OneCare. For more information, see Does Windows Live OneCare include Windows Defender?


To send us questions about OneCare or anything else related to security, click the EMAIL link above.

About the Author
Eve Blakemore

Group Manager, Trustworthy Computing

Eve Blakemore is a Group Manager for Trustworthy Computing who delivers consumer guidance around the latest trends in security and privacy. Eve joined Microsoft in 1998 and has worked in corporate and field roles with Microsoft Learning, US Public Sector, Read more »