Enable Account Lockout Policy And Set Lockout Threshold & Duration In Windows 8 [Tip]
This will open the Local Group Policy Editor dialog box where you can tweak all the system and user related settings. Now, navigate to the following location.
Computer Configuration/ Windows Settings/ Security Settings/ Account Policies/ Account Lockout Policy
In the main window, you will see 3 Policy settings, named Account lockout duration, Account lockout threshold, and Reset account lockout counter after.
First, open the second Policy, Account Lockout threshold. It determines the number of failed logon attempts that locks out the User Account. Set it to any number you like between 0 and 999, and click OK.
This will open another window with suggested settings for the other two Policies. Click OK to close the window.
Now, open properties for the Account lockout duration policy. It allows you to specify the number of minutes that a locked account remains inaccessible before it automatically becomes unlocked. Set the number of minutes (between 0 and 99,999 minutes) you want the user account to be locked out for and then click OK.
Now, open the third policy called Reset account lockout counter after. It basically determines the time (in minutes) that must elapse after a failed logon attempt before logon attempt counter is reset to 0. Set the time and Click OK to confirm. In the Local Group Policy Editor window, you will be able to see the new settings under the Security Setting section.
Once you’ve changed the security policy settings, close Local Group Policy Editor, and bring up Run console using the Win+R hotkey combination. Enter gpupdate /force and hit Enter to forcibly apply new policy settings. Now, restart or log off your PC to verify the new policy settings