Event ID - 33

Event Id33
SourceMicrosoft-Windows-TerminalServices-PnPDevices
DescriptionFailed to destroy Physical Device Object for device %1 in User mode bus component.
Event InformationAccording to Microsoft :
Cause :
This event is logged when failed to destroy Physical Device Object for device in User mode bus component.
Resolution :
Restart the terminal server (if necessary)
This issue should not cause significant problems, but if the terminal server experiences degradation in performance, restart the terminal server. Restarting the terminal server will delete all physical device objects (PDOs) in memory.
Note : A PDO represents the individual device on a hardware bus to a bus driver. The PDO is usually deleted from the terminal server when the user logs off or disconnects from a session or when the device is removed from the client computer. If the PDO is not deleted, system resources (for example, memory) might still be allocated to the PDO.
Verify :
To verify that supported Plug and Play device redirection is working properly, use either of the following methods:
Method one
Establish a remote session with the terminal server and check that the redirected device is available and is functioning as expected.
Method two
Check the status of the device by using Device Manager.
To perform this procedure, you must have membership in the local Administrators group, or you must have been delegated the appropriate authority.
To use Device Manager to check the status of the device:
  1. On the terminal server, open Device Manager. To open Device Manager, click Start, click Run, type devmgmt.msc, and then click OK.
  2. If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Continue.
  3. On the View menu, click Devices by connection.
  4. Locate the device under the User Mode Bus controller node.
  5. Double-click the device and verify that Device status indicates that the device is working properly.
Reference LinksEvent ID 33 from Source Microsoft-Windows-TerminalServices-PnPDevices

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