Because Defender.v4.1 may disable Windows Defender or other real-time protection, use a portable or offline scanner:
This guide provides step-by-step instructions to completely eradicate Defender.v4.1 from your Windows operating system. remove defender.v4.1
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 Because Defender
Defender.v4.1 poses significant risks to your computer and personal data. Some of the risks associated with this PUP include: remove defender.v4.1