Welcome to our new Microsoft Q&A Platform.
You could have a look at this document about Manage boot images with Configuration Manager:
https://video2.skills-academy.com/en-us/sccm/osd/get-started/manage-boot-images
It's recommended to submit a new case on SCCM forum as they will be more professional on your issue.
This is the SCCM forum link: https://social.technet.microsoft.com/Forums/Lync/en-US/home?category=configurationmanager