This is a quick one . Most of us would have faced this issue where we update the ADK version , or the SCCM version and then you have to create the new boot images as you no longer can add the drivers to the old boot image . This is what I was thinking when I upgraded Configuration Manager to 1706 . But thanks @Microsoft we now have the option to update the boot image to latest ADK level without the need to create a new boot image every time we update ADK or SCCM version.
Steps to update the boot image :
1. Once you have updated SCCM to 1706 with the latest hotfix, please browse to the Boot images under operating system node in Software library :
2. Once done please select the boot image you want to update . Right click on the boot image and select update distribution point .
3. Put a check mark on reload this boot image with the current Windows PE version from the Windows ADK and click next till finish . Voila you can now add the drivers and customizations to your old boot image
4. Result is the following boot image with all the options back:
I hope this helps