Microsoft recently released the 1.391.2901.0 update for Microsoft Defender, but according to foreign technology media borncity reports, after users install it, the CPU usage will soar during printing and other operations.
Users reported that after installing the new version, the load on Defender increased significantly. An in-depth investigation by the user found that it is related to the MsMpEng.exe program. This problem can be reproduced by executing the printing program in Word, Excel and other office software.
Note: The temporary solution is to find the MPCMDRUN.exe file in the system, and then add “RemoveDefinitions -All” to the signature to temporarily fix it.
