When you try to install the same copy of Windows on more than one machine and then try to activate online or by phone, the activation will fail. No two computers should have the same hardware signature. Creating such a link in theory should prevent the same copy of Windows from being installed on more than one machine, as was possible with earlier versions of the operating system.įollowing installation, Windows takes information from your video display adapter, SCSI and IDE drive adapters, processor type and serial number, hard drive serial number and your network adapter Media Access Control address to form a unique identity for your computer. Instead, the goal of Windows activation is to establish a link between a licensed copy Windows and a specific computer system. It is also different from post-installation registration. Activation differs from the installation process that requires a product code. users can rearm Windows 7 for an additional 30 days, and do this up to 3. install and run any version of Windows 7 for up to 30 days without requiring a product activation key. Windows activation is part of Microsoft's 'Windows Product Activation' process. Unlike Windows XP and Vista, failure to activate Windows 7 leaves you with an. How to Disable Automatic Activation in Windows 7.
