@Paul Chou
Hi,
Windows 10, version 21H1 is available for users with devices running Windows 10, version 20H2 and version 2004 who manually select “Check for updates” via Windows Update
It has been initially throttling up availability over the coming weeks to ensure a reliable download experience. As a result, the update may not be offered to you right away.
However if you insist on doing an upgrade to 21HI right now. You can use the Update Assistant to get 21H1 manually.
https://www.microsoft.com/en-us/software-download/windows10
If you choose this method, notice that it will do compatibility check at first, and take around a hour to complete. Make sure your laptop has power plug-in.
Since this version has just been launched, we still recommend that you wait for the update be offered to you.
Hope above information can help you.
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