This document discusses Base Image Script Framework (BIS-F), a free community tool for sealing and personalizing Windows virtual desktop images using validated vendor best practices. BIS-F allows automating several steps to prepare a generic image and make the image unique for each backend server during startup. The document outlines the key features and enhancements of BIS-F, including support for technologies like FSLogix, Citrix, and various applications. It also provides information on configuring BIS-F using GPO and the logging and troubleshooting capabilities.