Microsoft Windows Live OneCare Sign In
 
   
Help keep your PC trouble free. Download the free trial of Windows Live OneCare.
Windows Live OneCare is currently available in the U.S. only. See additional system requirements.

Subscribe Now

Get always-on protection and maintenance for up to 3 PCs for just $49.95 a year.

 

Try It Free

Try Windows Live OneCare free for 90 days to see how easy caring for your computer can be.


 

Activate a Token

Do you have a store-bought product key or token? You can activate it here.
                    

 

Add Another PC

Already a subscriber? You can add another computer to your subscription here.