In line with the past similar security updates, Microsoft has released an update coded as KB971033, which according to Microsoft aims to neutralize any patches or methods which bypass the Microsoft OS Activation procedures. However, as seen with previous similar patches that were released on Vista and others, it is seen to have caused some complaints from legitimate users of Windows 7, some of which are business users, as that the update is said to have turned off some legitimate activations as well, as an apparent glitch.
Therefore, before applying this update on the main system, a test on a different computer which does not contain any crucial work is advisable.