Lenovo 30113RU - IdeaCentre A600 - 3011 Upgrade Instructions page 8

Activation Method:
Follow the instructions below to activate the Windows7 operating system after
installation.
Attention: Be sure to activate the new Windows7 operating system within the time
showed in the "Control panel-system and security-system" window after upgrade.
6 Windows7 Upgrade Instructions
1) Open the "Control panel-system and
security-system" window and click the
activation link.