Bitlocker Error when Attempting to Resume: One or More Bitlocker Key Protectors Are Required

When clicking Resume in the BitLocker Drive Encryption Control Panel applet, an error is encountered "One or More Bitlocker Key Protectors Are Required"

Resolution:

1. Open a command prompt with Administrator  
2. enter the following commands:

manage-bde -protectors -add C: -tpm <ENTER>

manage-bde -protectors -enable C: -tpm <ENTER>

Exit <ENTER>