In certain cases, especially for clients running retired RMM agents from other companies, it may be required to force a removal of the existing agent before a push or automated install can be successful. This can be accomplished on the host:

"C:\Program Files\Advanced Monitoring Agent\unins000.exe" /silent
"C:\Program Files (x86)\Advanced Monitoring Agent\unins000.exe" /silent
"C:\Program Files\Advanced Monitoring Agent\winagent" /removequiet
"C:\Program Files (x86)\Advanced Monitoring Agent\winagent" /removequiet

or remotely via PSexec:

psexec \$HOSTNAME -u $DOMAIN\$USER -s "C:\Program Files\Advanced Monitoring Agent\unins000.exe" /silent
psexec \$HOSTNAME -u $DOMAIN\$USER -s "C:\Program Files (x86)\Advanced Monitoring Agent\unins000.exe" /silent
psexec \$HOSTNAME -u $DOMAIN\$USER -s "C:\Program Files\Advanced Monitoring Agent\winagent" /removequiet
psexec \$HOSTNAME -u $DOMAIN\$USER -s "C:\Program Files (x86)\Advanced Monitoring Agent\winagent" /removequiet