File open in COM Surrogate

Right click the Taskbar and start the Task Manager. At the bottom, Take the drop down arrow and choose More Details. Under the Processes tab look for COM Surrogate and End the task, there may be more then one. Try it again.

COM Surrogate is a process that is used by more then one program. So, it will always come back. Right after Ending the Process, then do whatever you were doing with the file, dragging it to the trash or moving it, or whatever.

If you enable command line view in task manager then you might see if dllhost.exe is running like this:

If that's the case then it's likely that you have one or more folders containing one or more corrupt images which explorer cannot create thumbnails for or else the thumbnails are corrupted. this can also happen especially with folders that contain video files where thumbnails are created.

The solution is tricky. Either scan for and delete corrupt image files and videos (if you know how to do it) or else move all suspect folders to an external drive and disconnect it. Reboot and test. If the problem has gone you would move folders back one at a time testing after each move.