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Please see the official X‑Plane Support page for help.
I am not from Laminar Research; just a flight simmer from down under.
X-Plane does run on windows 10. Just about all flight simmers not running a Apple system or a Linux system are running Win 10 or Win 7. It does work.
I am running a disc version of XP on a Win10 system and have just converted my Air Manager networked PC from Win7 to Win10.
I am of the opinion that you have allowed windows to take control of the installation rather than allowing X-Plane performing the installation. The directory system or file structure you have created will definately cause a problem. X-Plane will not run in the "Cloud" Only on your PC.
What you need to do is
Read the manual found at https://x-plane.com/manuals/desktop/
When running the X-Plane Installer, I can also see it offering me the choice of selecting the install destination (attached jpg). Since you might have a previously installed copy (on OneDrive), make sure you first select a Clean Install (“Install a Second Copy” if applicable), as oppose to an “Update”.
I have just one suggestion: Temporarily close your OneDrive (via the system tray, lower-right corner taskbar) to eliminate that as a possible source/destination.
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