I have recently purchased Norton Internet Security 2010 and Norton Ultilities on a disc. The disc allows it to be used on upto 3 PC's. I currently have it installed on this laptop, and another one. I need to re-boot my computer but i dont want to have to use up the spare account i already have on the disc. Is there anyway i can re-install Norton Internet Security and Utilities but not using the spare account i have on the disc. I dont know wether i have to type in a serial key from the account i already have when i re-boot my computer. Thanks