Hi John,
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Regarding your technical issue: The "qt platform plugin" error is usually not a core Windows issue. It happens when a specific third-party application (built using the Qt framework) has corrupted files or is missing essential Windows components.
To help you fix this, we need a little more information:
What exactly are you trying to download?
Which application is giving you this error message? (For example, is this happening inside a web browser, the EA App, Epic Games, OneDrive, or another specific program?)
General Fix: In most cases, the quickest way to fix a "qt platform plugin" error is to completely uninstall the specific application that is giving you the error, restart your computer, and then download and install the latest version of that app from its official website.
Please reply with the name of the application, and we can provide more specific steps!