This is definitely one of the most mysterious errors on Windows and it infuriates users who are trying to edit properties of one of their files There are some fixes for this problem and we will try to present them all today and he hope the problem is solved by the end-

Solution 1: End the COM Surrogate Process

Ending the COM Surrogate process in the Task Manager helped some users but it didn’t work for others. However, we highly recommend you try out this solution before trying anything else as this one is very easy to try out. Good luck!

Solution 2: Install the Latest Updates on Your Windows PC

Luckily, folks who had issues with that build were relieved to find out that a new build was soon released which managed to deal with the problem efficiently. The point is that you should install all pending updates on your computer and see if the problem has been resolved.

wuauclt.exe /updatenow

Alternative:

Solution 3: Turning on DEP                

This issue can be worked around without having to reset your computer at all (resetting also probably won’t solve the problem). The reason why you should try this method is that this one is one of your last resorts which might work if the solutions above failed to work.

Solution 4: Disable Preview Pane

Even though plenty of people would argue that this is a viable solution to the problem, it will help to work around the problem in the means that it won’t occur any more but you might need to change the way you interact with Windows. The changes are slight to say the most but try this out and decide if you want to stick to this or not.

Fix: COM Surrogate has stopped working (dllhost.exe)FIX: Couldn’t open the file because the file type isn’t supportedFix: Source file names are larger than is supported by the file systemFix: Cannot Create a File When That File Already Exists Fix  File is Open in COM Surrogate - 14Fix  File is Open in COM Surrogate - 1Fix  File is Open in COM Surrogate - 65Fix  File is Open in COM Surrogate - 13Fix  File is Open in COM Surrogate - 24Fix  File is Open in COM Surrogate - 56Fix  File is Open in COM Surrogate - 58Fix  File is Open in COM Surrogate - 19Fix  File is Open in COM Surrogate - 38