We have been having issues with the last two JRE versions (8.391 and the recently released 8.401). In the past we have had no issues with pushing this update to our environment. Now it seems that the PatchMyPC pre-script that uninstalls Java (PatchMyPC-Remove-JRE8-64bit-Only.ps1) is not working. The WUAHandler log shows successful. However the log for the removal script shows that it is failing and I am not sure why. The error code line from the uninstall of 8.391 is:
CustomAction isSameFamilyinstalledAndLocked returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox)
CustomAction isSameFamilyinstalledAndLocked returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox)