Win32operatingsystem Result Not Found Via Omi New -

| Cause | Description | |-------|-------------| | | Win32_OperatingSystem is case-sensitive in some contexts. | | OMI namespace mismatch | Default namespace is root/cimv2 ; other namespaces may not contain this class. | | Insufficient permissions | OMI user lacks WMI read access. | | Corrupted WMI repository | WMI class enumeration fails. | | OMI server not running | OMI service ( omiserver ) down or not installed on target. | | Firewall blocking DCOM/WinRM | OMI uses WinRM (HTTP/HTTPS) by default; blocked ports cause empty results. | | 64-bit vs 32-bit redirection | OMI might be running in 32-bit mode and cannot access 64-bit WMI classes. |

List all classes in the namespace:

If connectivity is confirmed but the class is still "not found," the local WMI repository on the Windows host may be corrupted. This can sometimes be fixed by restarting the Windows Management Instrumentation (WMI) service or rebuilding the repository using winmgmt /resetrepository . Troubleshooting Steps FortiSIEM AIO - Collector questions and WMI/OMI issues win32operatingsystem result not found via omi new

: Using NTLM authentication frequently causes this specific OMI failure. Switching the connection method to Kerberos-auth in your credential settings often resolves the "not found" error immediately. | Cause | Description | |-------|-------------| | |

The error typically indicates a communication or permission failure between your management platform (such as FortiSIEM) and the target Windows host. Primary Troubleshooting Steps | | Corrupted WMI repository | WMI class enumeration fails