Uninstall the agent
On one device
Like any Windows application: Settings > Apps, search for "LongLife", then Uninstall. From the command line (administrator rights), silently:
msiexec /x LongLifeAgent.msi /qn
In bulk
Use your deployment tool:
- GPO: remove the package assignment (or configure removal); devices uninstall at startup.
- Intune: switch the assignment to "Uninstall" for the relevant group.
On the platform side
An uninstalled device stops reporting data. You can then revoke it or remove it from your fleet on the platform to keep a clean inventory.