Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The BFW file type is primarily associated with 'Blow Fish Web Proofs' by Custom Binary Services, LLC.
.BFW files, are images that have been encrypted or restricted using Blow Fish Photo Creator. Depending on the author's configuration, .BFW images might require a password, have watermarks and/ or and expiration date.
.BFW files can be viewed using Blow Fish Web Proof.