I recently bought a used PC through a local marketplace. It worked when I first saw it, but after bringing it home and starting it up, Windows showed no available Wi-Fi options. I plugged in a USB Wi-Fi adapter, but that didn't appear to change anything either. I'm also stuck at the Microsoft account sign-in because Windows seems to require an internet connection. What should I check, and how can I get online long enough to finish setup?
3 Answers
First, make sure Airplane mode is turned off. If that isn’t the issue, the Wi-Fi adapter probably needs its driver installed. If the PC has an Ethernet port, connect it directly to your router and run Windows Update; it may automatically download the correct Wi-Fi driver. You can also download the driver from the manufacturer’s website on another computer and transfer it with a USB drive.
A clean Windows installation may have removed drivers that were previously installed, especially if the seller reset the machine. Wired Ethernet, or a USB-to-Ethernet adapter, is usually the easiest temporary workaround. During Windows setup, you may also be able to choose an offline or limited setup option instead of signing in immediately, depending on the Windows version.
The exact PC or Wi-Fi adapter model would help identify the right driver. You can also open an Administrator Command Prompt and run `pnputil /enum-devices /problem` to look for hardware with missing or failed drivers. If the adapter still doesn’t appear after installing the correct driver, the built-in Wi-Fi card or the USB adapter could be defective.

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