Win10 update KB3156421 patch after the device running slow phenomenon solution

Before, Microsoft pushed the KB3156421 cumulative update to the official version of Windows 10 1511, and Microsoft urged users to actively feedback the patch. Recently, Microsoft officially announced to the public a known serious BUG in this accumulation update: Some Windows 10 devices will cause the device to run slowly after installing this update. Many of the partners who have this situation are asking Xiaobian, what happens when the device runs slowly after the Win10 update KB3156421 patch? How to solve? In response to this question, this article will tell you the solution that Microsoft officially gives.
Win10

Microsoft engineer Wink said the bug was caused by a feature in Cortana that was incompatible with the system. Microsoft has tracked this issue and expects it to be fixed in a few weeks.

Win10 update KB3156421 patch What should I do if the device is running at a turtle speed?

The problem can only be solved by turning off Cortana, which means that users can't continue to use the personal voice assistant on the device. Currently, Microsoft has not provided a patch to fix it.

In the BUG feedback sticker, Microsoft engineers said that the bug is not a widespread problem. If the user can solve this problem after turning off Cortana, I think we can definitely find the root cause of the problem once we Find the root cause of the problem and we will fix it in a few weeks, but for now we need more feedback to determine the problem.

The above is the solution for the slow running of the device after the Win10 update KB3156421 patch brought to you by this small series. I hope that it can help everyone. If you still have any questions, you can in the comment box below. Leave us a message. We will do our best to answer for you. Thank you for your continued support, and please continue to follow this follow-up tutorial and software.