Just days after the October 15th cumulative update for Windows 10, Microsoft urged users not to install the update.

KB4520062 (OS Build 17763.832) was available to install on Tuesday, and added bug fixes and improvements. But the Windows Support blog post pertaining to the update shared a security concern with it on Thursday. This certain issue seems to only affect businesses who heavily rely on the Microsoft Defender ATP.

0xc0000409 Error

They stated, “After installing this update, the Microsoft Defender Advanced Threat Protection (ATP) service might stop running and might fail to send reporting data. You might also receive a 0xc0000409 error in Event Viewer in MsSense.exe. At this time, we suggest that devices in an affected environment do not install this update.We are working on a resolution and estimate a solution will be available in mid-November 2019.”

This certain issue seems to only affect businesses who heavily rely on the Microsoft Defender ATP. Windows Support is quick to encourage users that before installing updates, they install the latest servicing stack update for their OS beforehand. The SSU minimizes possible update issues, while enhancing “the reliability of the update process”.

If you are needing help with Windows 10, please give us a call at 1-800-620-5285.  Karls Technology is a nationwide computer service company with offices in many major cities.  This blog post is brought to you from our staff at the Plano Computer Repair Service, if you need computer repair in Plano, TX please call the local office at (469) 299-9005.