It's not necessary. I only install the driver and the Physx system. I have done this for several years now and had no problems. I have a GTX 770.
Windows Update will occasionally update the driver for me, but it's a rare thing. Right now I'm on version 388.31 dated 11/14/2017 and I believe that Windows Update installed that version.
If I have problems with a game then I can manually update (also a very rare thing).
You may want to boot up into safe mode, run DDU to remove all traces of the current driver, boot back into normal mode and install the driver. Choose custom install and only install the 2 things mentioned above. More information can be found here...