Since OS was upgraded on the endpoint machine auto-remediation is failing. You tried to uninstall and reinstall the agent on a client machine and that didn't help.
The most likely root cause is that the OS upgrade interfered with the agent installation or the required environment settings are missing. You have to redeploy the agent through the GFI LanGuard console:
- Uninstall GFI LanGuard Agent on the target machine and reboot it. Once the uninstallation completes, restart the GFI Attendant service on the LanGuard server.
- Redeploy GFI LanGuard Agent on the target machine.
- Ensure that Required Settings to Scan a Machine and Successfully Install Missing Patches Using GFI LanGuard are in place.
Verify that agent scanning and auto-remediation operations are no longer failing. If the issue persists, contact GFI LanGuard Support.