GPO tool

Group Policy made searchable

A free ADMX browser or comparison tool for IT administrators. Search policies, find registry keys, and see exactly what each setting writes to the Windows Registry. Or compare two GPO backups to see exactly what has changed between them.

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Allow companion device for secondary authentication

This policy allows users to use a companion device, such as a phone, fitness band, or IoT device, to sign on to a desktop computer running Windows 10. The companion device provides a second factor of authentication with Windows Hello.

If you enable or do not configure this policy setting, users can authenticate to Windows Hello using a companion device.

If you disable this policy, users cannot use a companion device to authenticate with Windows Hello.

Registry Information

VendorMicrosoft
ProductMicrosoft Secondary Authentication Factor
CategoryMicrosoft Secondary Authentication Factor
Applies toComputer Configuration
Supported onWindows 10 0
Registry Key[HKLM]SOFTWAREPoliciesMicrosoftSecondaryAuthenticationFactor
Value NameAllowSecondaryAuthenticationDevice
TypeREG_DWORD
Enabled value1
Disabled value0