Microsoft As it is known has blocked the availability of updates to systems with Windows 7 and 8.1 devices running a new generation processor.
The company announced the change in January of 2017, completing support for all processors will be available for Windows 10, and not earlier versions of Window.
The company then released the updates, KB4012218 and KB4012219 which for the first time had the ability to locate the hardware on systems with Windows 7 and 8,1 and stop the update by displaying the following image:
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.
He extracted it content of MSU file 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 work like scripts which you just have to run to make the necessary changes. Windows Update will continue to work exactly as 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.
