Attempting an in-place upgrade from 12.1.5 to 12.1.6 MP1 returns the following error:
Error 1303. The installer has insufficient privileges to access this directory: C:\Program Files (x86)\Symantec\Symantec Endpoint Protection\12.1.6306.6100.105. The installation cannot continue. Log on as an administrator or contact your system administrator.
Ironically, I AM THE ADMINISTRATOR and using said account. Yet this happens on every flavor of computer in our environment.
In addition, we are also noticing that administrator group membership does not have permissions to add any directories or files under C:\Program Files (x86)\Symantec and may well be the root cause.
We have tried putting assets into a temp SEPM group with all tamper protection disabled similar to a SYMHELP environment, yet we see the same behavior.
For what it is worth, a clean wipe, reboot and Installation of 12.1.6 MP1 works flawlessly.
Any suggestions would be welcome at this point.