Windows 10 Pro Tweak No Defender Jun 2026

Disabling Microsoft Defender permanently removes your primary protection against malware. Do not perform these tweaks on a PC that browses untrusted websites, downloads torrents, or is used by non-technical family members. This guide is for isolated test environments, legacy hardware, or power users who rely on third-party security suites (like Bitdefender or Kaspersky).

New-Item -Path "HKLM:\SOFTWARE\Microsoft\Windows Defender\Features" -Force Set-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows Defender\Features" -Name "TamperProtection" -Value 0 -Type DWord Windows 10 Pro Tweak No Defender