Windows Activation Technologies helps you confirm that the copy of Windows 7 that is running on your computer is genuine. Additionally, Windows Activation Technologies helps protect against the risks of counterfeit software. Windows Activation Technologies in Windows 7 consists of activation and validation components that contain anti-piracy features.
- Activation is an anti-piracy technology that verifies the product key for the copy of Windows 7 that is running on your computer. The product key is a 25-character code that is located on the Certificate of Authenticity label or on the proof of license label. These labels are included with each genuine copy of Windows. A genuine product key can only be used on the number of computers that are specified in a software license.
- Validation is an online process that enables you to verify that the copy of Windows 7 that is running on your computer is activated correctly and is genuine.
More information about this update
This update for Windows Activation Technologies helps detect validation errors and activation exploits. This update also detects any tampering attempts made to important Windows 7 system files. Be aware that some counterfeit copies of Windows include malware.
When this update is installed, it performs a validation process for the copy of Windows that is running on your computer. However, this validation process does not affect the functionality of Windows. The update process exits silently if it detects no validation errors, activation exploits, or tampered files.
If the update discovers a tampered file, it tries to restore the file. This restore may require a restart. If this update cannot restore the tampered files, it will direct you more information on the Internet.
Validation Errors or Activation Exploits
Validation errors and activation exploits try to bypass the Windows activation process and are sometimes included with counterfeit copies of Windows. If a validation error or activation exploit is detected, you will be directed to more information on the Internet for resolution of the activation exploit or the validation error. When validation errors or activation exploits are removed, you may be asked to use a valid product key to activate the copy of Windows 7 that is running on your computer. If you decide not to resolve the validation error or the activation exploit at that time, you will be periodically notified that the copy of Windows 7 that is running on your computer is not genuine. Additionally, Windows will provide a link to more information online for resolution.
Read More here. http://support.microsoft.com/kb/971033/en-us
Get it from Windows Update
Get it from Microsoft Download Center
The following files are available for download from the Microsoft Download Center:
Update for Windows 7 for x86-based systems (KB971033)
Update for Windows 7 for x64-based Systems (KB971033)