When you modified the value of account lockout threshold in your computer to limit logon attempts, the suggested value of account lockout duration is 30 minutes (as shown in the following picture). Have you ever thought about what you can do when you think the duration is longer or shorter than the time you want? As a matter of fact, you are able to change it. And this text will illustrate how to change account lockout duration in Windows 8/8.1 computer for your reference.
Video guide on how to change account lockout duration in Windows 8:
Step 1: Open Run dialog box with Windows+R hotkeys, type gpedit.msc in the empty box and click OK to open Local Group Policy Editor.
Step 2: As the User Account Control window turns up, choose Yes to go on.
Step 3: Find Account lockout duration by the following method and double-click it to open its properties window.
Computer Configuration/Windows Settings/Security Settings/Account Policies/Account Lockout Policy/Account lockout duration
Step 4: In the window of Account lockout duration Properties, change the value to the number (referring to 20 in this example) you want and tap OK.
Tips: The value of Account lockout duration can be a number between 1 and 99999.
Step 5: Select OK in the Suggested Value Changes interface to consent the suggested setting and bring the changes into effect.
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