Within 24 hours of the release of Microsoft’s new Windows Genuine Advantage tool, there was information on the internet to bypass it easily by pasting a javascript code into the address bar. About 11 days ago, Microsoft caught on to this method and blocked it. I was just retrying the method today and seems that it now works again!

The javascript code you have got to paste into your address bar when it asks you what method of updates you want (whether Express or Custom) at Windows Update is:

javascript:void(window.g_sDisableWGACheck=’all’)

Note: You need to have the Windows Genuine Advantage tool installed first for it to work, or it will prompt you to install it.

Update: It seems that the javascript method of bypassing the WGA does not work anymore. Disabling the Windows Genuine Advantage tool in Internet Explorer -> Manage ad-ons still works though.