Enforced: When Enforced is selected, the Windows FIPS 140-2 module will be enabled and will be used every time an encrypted archive is created. Also, archive encryption will be automatically selected when creating new archives, ensuring/enforcing FIPS 140-2 encryption any time encrypted archives are selected. If the Windows FIPS 140-2 module is not turned on, PowerArchiver will turn it on and show a confirmation window. Administrators can enforce archive FIPS 140-2 encryption through reg settings,
explained here.