THIS IS THE FIX. You should document this.
I was able to find the Install file for LMI Antivirus. It goes into C:\WINDOWS\TEMP
and it deletes itself shortly after the install fails. You must act quickly in order to get this file.
I was able to capture that and copy it to my desktop.
Then I copied my copy and extracted that so as to not see my copy deleted.
I changed my C:\Program Data\LogMeIn\Logmein.log file to *.bak then
I ran Install.exe as Administrator.
Easier Method:
Seems I have completely resolved the issue without editing the registry.
I did remove the orphaned directories.
I found an Avast Corporate Cleaner.
https://files.avast.com/iavs9x/avastclear.exe
The Avast Portal Uninstall does not do a clean uninstall.
AvastClear.exe restarts the PC in Safe Mode and removes the Avast Kernel Drivers.
All my PCs are installing and syncing with Central.
No manual install needed.
@EricAnderson thanks for sharing this with the Community.
To resolve the LogMeIn Antivirus installation issue, first, swiftly save the installation file from C:\WINDOWS\TEMP before it auto-deletes, then extract and secure it. Rename C:\ProgramData\LogMeIn\LogMeIn.log to *.bak and run Install.exe as Administrator. Delete contents of C:\WINDOWS\TEMP as per the new log file. Manually eradicate remnants of prior antivirus software from both the system and registry. Finally, proceed with the installation to ensure success, while monitoring for integration with LogMeIn Central Premiere.