Just follow the complete guide discussed below to proceed.
After installing this tool, it will search out all the required files for the machine.
Now there, check for all the updates available for your Windows 10.

Now, go to the Download tab and select all the updates you want to download to your PC.
This tool will display all the sizes of drivers and download rates, which will be downloaded offline.
Now pick the update package and press Start, located in the top right corner of your screen.

Your updates will be downloaded.
All the update files will be downloaded to the tools folder Cache.
You must copy the Portable Update folder from your program files and then paste it into your USB drive.

You are done; now, Windows 10 PC will get updates offline.
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