I know this question has been up for quite some time but I figured out a way to fix it, I had the same problem and it took me a bit to find the error. The problem being that there was a program named "Program" in the startup tab of my task manager and the "open file location" and "properties" options were grayed out.
The problem is that there was probably a program that you installed and then deleted but the installer left some values in the registry.
Search your computer for regedit and open up the following path:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
After you click on Run a list of programs will be in the right window. These programs should all be within your startup tab in task manager, find the program that no longer exists on your computer (in my case it was Apowersoft Screen Capture Pro), right click and select delete. This should remove "Program" from your startup tab.
Make sure not to delete anything other than the program you know no longer exists, if you're not sure then either google the programs one by one to check what they are or search for them on your computer to see if they are still there.