Good.
Yes install the drivers updates.
Its difficult to say, we rely on the tools the system have and SURT provided by Microsoft to check for problems, after fixing the errors, some problems are only detected when installing an update that affects other system components.
Sometimes installing the latest Monthly Rollup can leave the system in inconsistent state because of some glitch during install or a MS error and only on next month the problem emerge when trying to install the new Monthly Rollup.