Can I update Windows without internet?

Windows maintains a catalog of all the updates that it has released for a particular OS. You can directly download an update from this catalog (.exe file) and install them offline without an Internet connection on any PC. … Just double-click on the downloaded file to install it.

Can I update Windows 10 offline?

You can also update it offline by downloading the update directly from Microsoft Update Catalog and save it on a flash drive as a .exe file.