(May 11, 2013 at 3:51 am)Darwinian Wrote: What to do when you have re-installed Windows 7 on your sons laptop with your own installation DVD as his didn't come with one, but with his own product key and then a couple of months later the laptop starts complaining that the product key (the one actually printed on the label on the back of his laptop) is no longer valid!!
This has happened to me a couple of times. This can be resolved by activating Windows 7 by telephone (instead of online activation). Follow these steps:
1) Right-click on "My Computer" on the Windows Desktop.
2) Click on the "Properties" option.
3) Click on "Change product key".
4) Enter the product key printed on the laptop label, then click next.
5) Activate Windows 7 by choosing the "Use the automated phone system" option, and simply follow the steps required to activate by telephone.
I am pretty sure that this will work for you.
