Microsoft announced the launch an all-in-one security and productivity software subscription service for consumers called Equipt that combines Microsoft Office and Windows Live OneCare. There service will be sold through Circuit City starting in this month. The service will cost $69.99 for a one-year subscription. Each subscription will be good for three home computers.

According to Ina Fried of CNET, the idea behind the subscription service is to convert more new PC buyers into Office buyers. It plays on the fact that although most people don’t buy Office at the same time as a computer, many do purchase a security software subscription and Microsoft is trying to tap into the fact that while many people would rather find a copy of Office that they don’t have to pay for (either an older version or a pirated copy) they are willing to pay for security software.