Microsoft As it is known has blocked the availability of updates on systems running Windows 7 and 8.1 devices running on a new generation processor.
The company announced the change in January 2017, completing support for all processors will be available for the Windows 10, and not older versions of Windows.
The company then released the updates, KB4012218 and KB4012219 which for the first time had the ability to detect the hardware in systems with Windows 7 and 8,1 and stop the information showing the image below:
Let's see what we can do with it…
GitHub user zeffy decided to take a closer look at how Microsoft manages to lock it down installation updates. On a closer look he noticed that the lock is done at the operating system level.
What he did then was:
Download Patch KB4012218 from Microsoft.
Extracted its contents archiveu MSU using it expand command line tool. What he did basically was to extract all the files of the update so he could analyze them separately.
The files were too many and then used PowerShell to filter the files with anything starting with "wu" to find the ones related to Windows Update.
While reading the code and searching for the calls he discovered wuaueng.dll, both of its functions: sCPUSupported (void) and IsDeviceServiceable (void).
Having found the cause, he should develop a solution to bypass the Windows Update block.
Teasing IsDeviceServiceable (void) a bit, Windows Update was not notified about what CPU the machine is using.
So the solution is a crack that "fixes" the dll. Zeffy uploaded patched files (32-bit and 64-bit) for Windows 7 and Windows 8.1 on his GitHub page. The source code is also available and you can check it.
Patches act like scripts that you just have to run to make the necessary changes. Windows Update will continue to work just like you did before.
Caution: before applying crack keep a backup of the Wuaueng.dll file.
Of course, the above method may last until the next Wuaueng.dll is released by Microsoft.
