Windows Server 2025 account lockout duration must be configured to 15 minutes or greater.

When enabled, the account lockout feature prevents brute-force password attacks on the system. This parameter specifies the period of time that an account will remain locked after the specified number of failed logon attempts.

Verify the effective setting in Local Group Policy Editor.

Run gpedit.msc.

Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy.

If the "Account lockout duration" is less than "15" minutes (excluding "0"), this is a finding.

For server core installations, run the following command:

Secedit /Export /Areas SecurityPolicy /CFG C:\Path\FileName.Txt

If "LockoutDuration" is less than "15" (excluding "0") in the file, this is a finding.

Configuring this to "0", requiring an administrator to unlock the account, is more restrictive and is not a finding.

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy. Set "Account lockout duration" to "15" minutes or greater.

A value of "0" is also acceptable, requiring an administrator to unlock the account.