Fix: Slow Context Menus after the Windows 10 Anniversary Update

In the aftermath of the infamous Windows 10 Anniversary Update, countless problems and issues are running rampant and quite a significant percentage of the Windows 10 user base is affected by entirely new and never-seen-before issues. This is quite reminiscent of the situation seen after Windows 10 was released and most Windows users upgraded to it and encountered more problems than anyone could have ever imagined a Microsoft product could have. One of the more common post-Anniversary Update issues being seen causes all – or most, in some cases – context menus (the menus that appear when you right-click on anything) to be slow, iffy, weird, lagging, sluggish or a combination of these.

Most of the users affected by this issue have reported their context menus not appearing fully, taking a long time to actually manifest, being completely transparent or any actions performed within context menus taking ages to register, among quite a few other context-menu related issues. For all affected users, this issue manifests as soon as their computers boot up, every time their computers boots up.

At first, the belief was that an affected user’s GPU is to be blamed for this issue since context menus are, technically, rendered by a computer’s GPU. However, this theory was put to rest when almost none of the users affected by this problem had any luck fixing it by rolling back, updating or uninstalling and reinstalling their graphics drivers, or even changing their GPU entirely.

In many cases, this issue is caused by a problem with the affected computer’s registry or a third-party application, but the cause of this problem for most affected users remains unknown. For some reason, the majority of affected users are able to temporarily get rid of this problem (at least until the next time they shut down and then boot up their computers) by somehow changing their screen’s resolution, even just for a moment – by launching a game that is set to launch in a different resolution than their screen’s current resolution, for example. The following are some of the most effective solutions that you can use to try and permanently resolve this issue:

Solution 1: Make some adjustments to your computer’s registry

Problems with a computer’s registry can lead to this issue, and such an instance of this issue can be fixed by making a few specific adjustments to the affected computer’s registry. To fix this problem by editing your computer’s registry, you need to:

1. Press the Windows Logo key + R to open a Run
2. Type regedit into the Run dialog and press Enter.
3. In the left pane of the Registry Editor, navigate to the following directory:

HKEY_CLASSES_ROOT > Directory > Background > shellex > ContextMenuHandlers

4. When you expand the ContextMenuHandlers registry key in the left pane, you are going to see a number of sub-keys underneath it. One by one, delete every sub-key you see under the ContextMenuHandlers registry key, except for the sub-keys named New and WorkFolders.
5. Once done, close the Registry Editor.
6. Restart your computer. When the computer boots up, try opening a few context menus and see whether or not the problem has been resolved.

Solution 2: Enable Base video on startup

As stated before, most users affected by this issue can get rid of this problem by temporarily changing their computer’s resolution, and the problem doesn’t resurface until the next time their computer shuts down and boots up. Well, enabling Base video on startup is going to temporarily change your computer’s resolution (on the logon screen) every time your computer boots up, automatically getting rid of this issue every time your computer boots up before you even log in. To enable Base video on startup, you need to:

1. Press the Windows Logo key + R to open a Run
2. Type msconfig into the Run dialog and press Enter to launch System Configuration
3. Navigate to the Boot
4. Enable the Base video option by checking the checkbox beside it.
5. Click on Apply.
6. Click on OK.
7. Restart your computer, and check to see whether or not the issue has been fixed when it boots up.

Solution 3: Uninstall ASUS AI Suite 3

ASUS AI Suite 3 is an application mostly intended for power-users that comes pre-installed on many ASUS computers. Unfortunately, quite a few users who have been affected by this issue have linked it to their installation of ASUS AI Suite 3, and uninstalling the program in all such cases proved successful in getting rid of this issue. If you are experiencing this problem and also have ASUS AI Suite 3 installed on your computer, completely uninstall it, remove any files or settings left behind by it, restart your computer, wait for it boot up, and see whether or not doing so fixes the problem for you.

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