Run each of the commands below into the Elevated command prompt window, after each command press Enter:Ĥ. Make sure that Windows Defender Service is enabled and set Automatic. Run services.msc to open Services Manager. Open Action Center and check if Windows Defender is enabled.Ģ. To fix the above errors, follow the steps below:ġ.

This error may be due to the installation of a program, certain antivirus software Windows Defender has been disabled. However in some cases when opening Windows Defender you receive an error message: 'Windows Defender has been turned off, and it is not monitoring your computer '. Windows Defender allows users to schedule to scan or schedule automatic scans. This is a free program that Microsoft provides for Windows users. Windows Defender is one of the most effective anti-virus programs that helps protect against malicious software, malware, spyware.