Press the Windows key + R on the keyboard and type winver in the text field and press Enter.
Then you can determine the version of your Windows 10.
Also, in the Settings window, navigate to System > About. Scroll down a bit and you’ll see the information you’re after.
The current version of 2004 is 19041.508.So, you have switched to Windows 10 Version 2004.
Hope above information can help you.
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