TraceDaBoss :
JackNaylorPE :
1. Look at the sticker that is legally required to be affixed by the laptop manufacturer.
2. call your vendor.
3. If it has been legally input at factory, Run Belarc Advisor
http://www.belarc.com/free_download.html
Thanks.. But I just finished a new build and I am not paying for an OS I already have Windows ultimate 64 bit installed on my computer but it is not activated yet. Could I use my laptops product key to activate windows on my new rig?
If Windows Ultimate 64 came pre-installed on the laptop it most likely a OEM version and that means it is tied to that laptop and that laptop only. So if that is the case you will need to purchase a different version for the new build.
If you however paid for the OS separately then yes you can install it on the new system however you can only use it on one PC so that would mean the laptop would be without a OS.
If you have to buy a different copy of Windows you can get Windows 7 x64 OEM from Newegg for $99-$140 depending on the what you need. While that is not Ultimate you can get the Windows 7 Professional SP1 version for $140
http://www.newegg.com/Product/Product.aspx?Item=N82E16832116992