Remove Defender.v4.1
Before removal, perform a quick check:
Back up your registry before making changes. remove defender.v4.1
After completing all steps, restart your computer. Perform a full scan with by going to Settings > Privacy & Security > Windows Security > Virus & threat protection > Scan options > Full scan . Before removal, perform a quick check: Back up
If the program appears in your installed apps list: Privacy & Security >
Under "Virus & threat protection settings," click . Toggle Real-time protection to Off . Method 2: Permanent Disabling via Group Policy Microsoft Defender Antivirus in Windows Overview