How to disable Microsoft Defender in Windows 10?

[dmitrii_fediuk]

Step 1

Disable «Tamper Protection».

Step 2

Delete the WinDefend key from the Windows Registry.

Step 3

Adjust Microsoft Defender settings in Group Policy Editor.

Step 4

Disable the Microsoft Defender's firewall.

[dmitrii_fediuk]

• Why is Windows Defender bothering me again after I fully disabled it 1.5 years ago?
• Why is «Windows Defender» bothering me today instead of «Microsoft Defender»?
• What is the difference between «Windows Defender» and «Microsoft Defender»?

[dmitrii_fediuk]

How did I remove Microsoft Defender completely from Windows 10?