Disabling MSDT URL protocol prevents troubleshooters being launched as links including links throughout the operating system. Follow these steps to disable:
- Run Command Prompt as Administrator.
In the search box, type “CMD”. Select the “Run as administrator” option.
![](https://uwyo.teamdynamix.com/TDPortal/Images/Viewer?fileName=e449c897-3579-4247-b5a0-59496aedb20e.png)
Select “Yes” on the User Account Control.
![](https://uwyo.teamdynamix.com/TDPortal/Images/Viewer?fileName=92cb1f8a-7070-45f7-ae41-aa9bbc5404be.png)
- To back up the registry key, execute the command “reg export HKEY_CLASSES_ROOT\ms-msdt filename“
Chose a name for the backup file such as “MSDT_Protocol_Backup” and run the command reg export HKEY_CLASSES_ROOT\ms-msdt MSDT_Protocol_Backup in the Administrator command prompt by typing in the command and selecting return.
![](https://uwyo.teamdynamix.com/TDPortal/Images/Viewer?fileName=ba5b4072-abbf-4411-8306-85cdddc41e20.png)
- Execute the command “reg delete HKEY_CLASSES_ROOT\ms-msdt /f”.
Run the command reg delete HKEY_CLASSES_ROOT\ms-msdt /f in the Administrator command prompt by typing in the command and selecting return.
![](https://uwyo.teamdynamix.com/TDPortal/Images/Viewer?fileName=35dc1e6b-5e3f-43b9-85e9-e4a388ddbebd.png)
You are now finished.
Please click here if you'd like to be directed to a KB Article to UNDO this workaround.