How to install Windows 10 without Microsoft account?

Etccher has a modern and minimalist interface, the three steps of selecting ISO, selecting USB, and writing are easy to understand at a glance, which perfectly matches your preference for point-and-click operation, and its automation of the writing and verification process reduces mishandling, which is great for newbies, and its portable version requires no installation and is highly stable to let you install Windows 10 without Microsoft account, so I think it will fit the post query.

In the main interface of Etccher, select the ISO file, USB drive and click Flash Write, wait for 10 - 20 minutes, after completion, open the USB drive to confirm the existence of the installation file or restart the computer to test the startup, and then restart the computer to enter the BIOS to set USB.

 Then restart the computer and enter BIOS to set USB as the preferred boot device and select UEFI or Legacy / CSM mode, save and restart the computer to boot from USB to enter the Windows 10 installation wizard, follow the prompts, and when the installation is complete and you get to the page of signing in to your Microsoft account, you can bypass Microsoft account by disconnecting from the network and clicking Back or pressing Shift + F10 and typing in oobe\bypassnro to complete the setup.