If your Windows Security closes immediately after opening – or crashes on your Windows 11/10 computer ... and check if it solves the issue or not. 6] Troubleshoot in Clean Boot State Clean ...

On Windows 11 (or ... many security features available with the operating system, such as Microsoft Defender Antivirus, Device Security, and Firewall. If the app doesn't start correctly ...

In this section, we will see how to open Local Security Policy (secpol.msc) on Windows 11/10 PC using the following methods: As you can see from the above picture, the policies available in the ...