Microsoft Windows KB3004394 Causing GPU Driver Issues and More in Windows 7


A few days ago, Microsoft released the MS KB3004394 updated which, unfortunately, caused some problems and drivers issues. The KB3004394 update somehow prevented users to install or perform updates, specially AMD’s new Catalyst Omega driver. The update not only brought problems to AMD users alone, but also to NVIDIA users as well. It is recommended that the MS KB3004394 be removed from your system, specially if you are using Windows 7 SP 1. Microsoft is already aware of the said issue and has released a new update (KB 3024777) to counter the said problem. More details below.

Microsoft Windows KB3004394 Update

Must Uninstall MS KB 3024777 Update

The Microsoft Windows KB3004394 is an update for Windows Root Certificate Program in Windows. It basically modifies the Windows Root Certificate checker and checks for bad root certificates daily. But it also somehow blocks other Windows Updates and also blocks graphics card driver updates. Some core programs are also reported to stop working properly.

According to Microsoft:

We have found that this update is causing additional problem on computers that are running Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 SP1. This includes the inability to install future updates. The KB 3004394 update does not cause any known problems on the other systems for which it is released. We recommend that you install the update on the other systems. An update is available to remove KB 3004394 from Windows 7 SP1-based and Windows Server 2008 R2 SP1-based computers.

If you are one of those users who have turned off automatic updates, then you shouldn’t be affected by this problem. But just to be sure, check if a certain KB3004394 was installed. To check whether the update was installed, simply go to Control Panel, then Programs and Features and click on Installed Updates. There you will see a list of updates and patches installed.

How To Remove MS KB3004394 Update

For those who let their OS do the updating, or has set their system to run automatic updates, there is a big possibility that the KB3004394 was already installed. To manually remove the said update, simply do that following:

1. Go to Control Panel
2. Click on Programs
3. Click on Programs and Features
4. Click “View Installed Updates”
5. Locate “Update for Microsoft Windows (KB3004394)”
6. Click the said update and press “Uninstall”
7. It will ask you to restart your system.
8. Restart and your Done!

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