I want to install my windows 7 on another laptop, do i have to deactivate it ? if yes, how to ?
As Om Nom Nom said, if the windows came pre-installed on your machine it is most likely an OEM copy. Which basically means it will only authenticate to your current machine. If you bought your copy of windows 7 you can just install to another computer and authenticate. You might have to use the phone route tho. According to the EULA
Microsoft asks that you format the old hard drive. But basically once the old laptop goes to check for updates and a