I can't reproduce the problem, but you might want to take a look at these two articles in case there is anything useful relative to what you are seeing. Try the utility (ShellExView) mentioned in the first one too and see if any clues there...
»bp
If I'm understanding you correctly, you're saying that when your search results included some files in the base folder of that search, and you right click on one of those files. "open file location" is not in popup list?
If so, that's different than I am seeing here, it's still in the list on my Win10 system.
»bp
Certainly been there, although more likely Windows is the culprit not the hardware. Sometimes Windows thinks things are different and produces different results, even when we think / know we are doing the same thing.
Make sure you are "testing" with the same type of file (extension) too, it seemed like some things I read indicated that different file types and their associated applications could behave differently in this area.
»bp
If you think it's resolved just pick one or more comments that indicate what the solution was. If there isn't one yet you can add a new one summarizing. Then if desired, select any expert comments that either directly contributed to the solution, or were helpful for you.
Can you post more details about your issue?