Solve : How to update Software?

1.	Solve : How to update Software?
Answer» I have just checked and I have a older VERSION of Windows 10 on my lap the ONE I have at present is 20H2 and the latest version is 21HI I have gone into settings then update and security and thought I had downloaded the software but it is still saying RESTART REQUIRED although I did restart it.It still says Feature update to Windows 10, version 21H1.Can someone say what I have done wrong if I have.Try with media update tool.

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