@Vinod Survase, Thanks for posting in Q&A. To test and check whether USB connection has been blocked by your organization's org-wide USB blocking policy applied via Intune, you can try connecting a USB device that is not on the allowed device ID list. If the USB device is blocked from installing, you will see a message similar to "The installation of this device is forbidden by system policy. Contact your system administrator." This means that the USB connection has been successfully blocked by your organization's policy.
If you want to confirm that the policy is working correctly, you can check the logs on the device to see if the USB device was blocked. You can also use a log file to troubleshoot devices that shouldn't be blocked.
References:
- Restrict USB devices and allow specific USB devices using Administrative Templates in Microsoft Intune
- Verify on Windows devices
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.