Re-instating Internet Security 2011 Licence?

Internet Security 2011

1 Year Protection

for up to 3 PCs

 

Hi,

 

I run two computers, one is a desktop PC and the other is a notebook. Both have Internet Security 2011 installed on them.

 

The notebook crashed yesterday, due to a problem with the boot manager. The only way to get it up and running gain was to upload an old system image. This has taken me back to when I had internet security 2010 installed and this has obviously since expired.

 

I want to re-instate Internet Security 2011, using one of my original license used before the notebook crashed. How do I do this?

 

Many thanks.