This seems to only affect one machine, specs below:
Windows 10 Pro x64
Lenovo Thinkpad S1 Yoga with SSD
There are 2 x issues:
1. Despite branding the installer with custom logos, these do not show when Symantec Endpoint Encryption 11.3 is installed. I have tested the same installer on another windows 10 machine and it is branded correctly.
2. Once the encryption software is installed the laptop takes around 5 - 10 mins to reboot or shutdown, startup times are not affected. As soon as I uninstall the software it goes back to normal shutdown/restart speeds (less than 1 minute).
I have reinstalled the software several times and even rebuilt the installer but no change.
One thing I will say is that I have reinstalled the software 10+ times on this machine and some of those times the installer has not been branded so I'm wondering if the machine is somehow caching the settings of a previous installer? Is there some sort of cleanup tool or manual uninstalltion process I can follow?