Unhandled exception - invalid class

If you open Disc-check transfer and see an unhandled exception error appear this would normally mean that something is blocking the downloads from being recognised by the computer. This article is only to be used when you are receiving the below error

If you press continue you can still go into Disc-check transfer however no files will be processed. If you click quit the app will close.

What do I do?

To confirm that the service is being blocked you would need to follow the below instructions:

1. On the search bar at the bottom of your computer search for WMIMGMT.MSC
2. Open up the app that appears (screenshot below)
   
3. Right click the WMI Control (local) located in the top left
4. Click Properties

If the properties show the below, you would need to contact your IT or whoever manages your computers as the options are blocked.