Jinn

There's a feature in Windows which I never understood why it was ON by default. It appears that you're the use-case for such a setting.

In Explorer ("My Computer"), select Tools > Folder Options, select the View tab and check the box for "Hide extensions for known file types."

This is the first thing I turn off on my machines, as I like to know what the extension for a given file is. Alas, if you're intent on renaming a file without providing the full extension, this is your solution.

And apparently the choice most users desire, as dictated by Microsoft's defaulting.

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"I'm typing on a computer of science, which is being sent by science wires to a little science server where you can access it. I'm not typing on a computer of philosophy or religion or whatever other thing you think can be used to understand the universe because they're a poor substitute in the role of understanding the universe which exists independent from ourselves." - Willravel