You seem to be asking if my user account has administrator rights.
In most modern operating systems is considered (by developers of that OS, not by Graviteam

) that the software changes introduced by the administrator (including upgrades). And this is generally correct.
I just purchased and downloaded the game and now want to install the first patch. I have done this with at least 30 games including three graviteam games over the years and this has never been an issue.
I'm sorry, you're the first with such a global, strange problem with patch

Why can't the files in the patch that change the game file be installed manually?
In our game patches do not replace the original game files, so that at any moment you can return to the original game, or switch the order of mods and patches.