insider preview 17074 not working

There are issues w/nVidia drivers (I have Ti1050 OC) in terms of how they load in Windows 10 RS3/4 Builds---after you install latest nVidia driver (most of you 64-bit, I bet). 'disable' driver in 'devices' so you get a 22 code....re-boot machine, go back into Windows but do not 'enable' card---power off, unplug power, press start button machine so power is not still there, and is used....then, plug back in power supply, re-boot, 'enable' card, and you should be good.

If you cannot get in latest Insider build, back-door it with a dual-boot (comes in handy) and use Unlocker via other Windows-based OS (on different partition) to delete the nVidia .inf file in windows/system32/driverstore/respository...the files are 'protected' but Unlocker will allow you to delete /inf...then re-boot, and then re-install nVidia driver but 'disable' it, and go thru above....took me a bit to nail this one...hope it helps some of you.