I was wondering that I have recently bought a NIS2010 disk from Amazon.co.uk. The disk have a one user three computer option. I already have one NIS2010 on my computer and plan to renew the subscription using the product key from the CD. In addition, my parent have planned to buy another computer. However, Dell have bundled a 15 months McAfee subscription of McAfee® Security Center. Therefore, I was wondering whether if I use the NIS2010 subscription on one computer, will it automatically expire after one year? How about the other remaining subscription for the other two computers? Will they expire after one year after I use the initial subscription on the first computer? Or can I install NIS2010 after McAfee subscription expire and still get a year.