Hello
Thank you for your question and reaching out. I can understand you are having query\issues related to Update Windows 10 offline.
- If your PC is offline, then you would need to download the Windows 10 latest ISO on another working PC that is connected to the Internet, then transfer that using a USB drive to your PC, then double click the ISO file, run setup.exe and then select the Upgrade option.
https://www.microsoft.com/en-us/software-download/windows10
Select Create Installation Media for Another PC, and choose ISO, not USB
Reference:
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