Windows host '<Hostname>' is in an unplanned outage : Version detection failed : Collection 'OS Version' failed : WMI query 'Win32_OperatingSystem' failed : Quota violation. [0x8004106C]
Before you try the hotfix from Microsoft, restart the WMI and test it.
Restart the Windows Management Instrumentation (WMI) service in the monitored machine Control Panel | Administrative Tools | Services
wmic /node: MonHostFQDN /user: DOMAIN\USER path Win32_OperatingSystem
where
MonHostFQDN - monitored machine fully qualified domain name, machine name or IP-address (virtual host name for cluster);
