Windows Activation AIO 2010: The Ultimate Guide to Windows and Office Activation
if you do not have a product key for the system and/or you do not have the licence for the system, you can follow this steps.
Windows Activation AIO 2010 Activator ALL In ONE Serial Key
open the control panel, click on programs and features.
in the window that opens, click on change
in the window that opens, click on turn windows features on or off.
in the window that opens, click on turn windows features on or off.
click on the advanced button
under windows installation > license requirements click on change
enter the product key and click ok
now windows is activated.
if you are having trouble, please check out the links below to help you. its possible that they will help you more than a product key reset from microsoft will. windows 10 upgrade key validation
activation failed with windows 8.1 and windows 7
activation failed with windows 8.1 and windows 7
there are some reports from users on the microsoft answers boards that this is also an error encountered when installing windows 8.1. however, if this is your case, it is not because the key used to register windows 8.1 is not valid. if you receive this error, you should simply contact the microsoft support team at your local store or by phone, they can help you with any issue you're facing. you should not use the incorrect key again, as it may be considered a "soft lift" offense.
a1: to protect microsoft's intellectual property, the primary ways to protect microsoft's products are to create a serial number or product key that helps identify who is the owner of a copy of microsoft software. serial numbers and product keys are used to keep software from being used illegally. when you purchase a copy of microsoft software, you receive a product key. you then enter the product key to activate the software in a product activation dialog box. a product key is a unique number used to authorize the use of a particular copy of microsoft software. when you purchase a copy of a microsoft product with a product key, you are licensed to use that copy. the product key becomes active only when the licensed version of microsoft software is activated.