Input the BitLocker recovery key. Wait until the unlock period expires, and then enter the correct PIN. Reinstall the operating system, and then reset the TPM chip.

First off, I'm running Windows 8.1 and I don't have a TPM. I know all about going under the local Group Policy and disabling the TPM requirement. That's fine, I understand that aspect of it. Where ...

To Specify Minimum Length for BitLocker Startup PIN Select the radio button for Enabled , enter a number between 4 to 20 in Minimum characters field for what you want, click OK .