Configure minimum PIN length for startup

This policy setting allows you to configure a minimum length for a Trusted Platform Module (TPM) startup PIN. This policy setting is applied when you turn on BitLocker. The startup PIN must have a minimum length of 4 digits and can have a maximum length of 20 digits. If you enable this policy setting you can require a minimum number of digits to be used when setting the startup PIN. If you disable or do not configure this policy setting users can configure a startup PIN of any length between 4 and 20 digits.

Additional Information

  1. Registry path is:

    HKEY_LOCAL_MACHINE -> Software -> Policies -> Microsoft -> FVE # MinimumPIN

  2. The Administrative Template path is:

    Windows Components -> BitLocker Drive Encryption -> Operating System Drives


* Making mistakes while changing registry values can affect your system adversely. We recommend you to create a System Restore point before making registry manipulation. If you're new to Registry Editor, read this beginner's guide.
** To locate the registry and administrative template path, checkout beginner's guide.
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