Windows 11 updates itself automatically, but sometimes the update process gets stuck, leading to missing drivers.
Four ways to install missing drivers on Windows 11 are: utilizing Windows Updates, using Device Manager, downloading drivers from the official website, and using third-party driver updater tools.
To use Windows Updates, go to Windows Update tab in Settings, click on Advanced Options, and select Optional Updates to download and install missing drivers.
To use Device Manager, open it, right-click on the device with missing driver, select Update driver, and follow the instructions to install the missing driver.