Running Parallels and Bootcamp on the same system.

First I installed Bootcamp in a 20gb partition just to have Office 2007 and some games. Everything worked perfectly, bootcamp installed fine and Windows XP SP2 too.

Then I went to install Parallels so I could have both options of running windows. Parallels instalation was smooth but after my first use Windows and AVG were saying that "I changed my computer since the activation and now I need to re-activate Windows again". Can I just insert my CD-Key there? If I do that will I lose my Bootcamp functionality? Or do I need 2 versions?

 

Just enter your key again. You're fine in terms of legality as you're using the same version on the same machine, just accessing it via different methods.

 

Ok I´ll try that, but after I go back to "bootcamp" It will ask me to insert the key again? and if I go back to Parallels will it ask the key again too or it a one time only thing?

 

It should be a one-time only thing. I know with VMware, if you don't install VMware Tools you will have to re-enter the key every time (if you install VMware Tools then you don't have to do that), but I haven't heard any issues with Parallels.

 

It's a one time thing with Parallels. You'll probably have to call Microsoft to verify it, just tell them you had to reinstall.