System failure after nvidia update

[c.pappas]

Hey everyone, this is my first post and it comes with a serious S.O.S.

I faced difficulty getting this build up and running with El Capitan but with luck I got it to finally get through the loading screen for the installer and from there it was just a matter of working through the bugs. I then managed to get it dual booting with windows off of the same SDD on separate partitions. Today as I was running El Capitan, I received a graphics driver update notification and I decided to accept and install. After that all hell broke loose. El Capitan will not load and hangs. I can still boot windows just fine. I have tried every boot flag that I know of based on reading other forums. I have set my bios to the correct options so I think.

To attempt to fix this, I have reconfigured my boot USB. Checked bios information multiple times. Attempted to boot installer.

Based on pic 2 any ideas? Please ask for information that will help me get this OS installed. I do not mind getting rid of windows and if I need to install it on a separate HDD I can make that happen. El Capitan is my main priority at this point. I think it has something to do with my network adapter or graphics card.

I may have effed something up but I have no idea where.

from install guide:

2. Load Optimized Defaults = GOOD
3. If your CPU supports VT-d, disable it = GOOD
4. If your system has CFG-Lock, disable it = CAN'T FIND
5. If your system has Secure Boot Mode, disable it = Believe it is disabled
6. Set OS Type to Other OS = GOOD
7. If your system has IO SerialPort, disable it = GOOD
8. Set XHCI Handoff to Enabled = GOOD

From step 4 in install guide: Followed exactly with and without inject nvidia graphics.

When I start my computer clover is still installed.

There are a ton of EUFI PCI Roots when you "bcfg boot dump" (easily over 30)

List of hardware in my build:

Gigabyte LGA1151 Intel Z170 ATX DDR4 Motherboards GA-Z170X-UD5
EVGA GeForce GTX 970 4GB FTW+ GAMING ACX 2.0+
Intel Boxed Core I7-6700K 4.00 GHz 8M Processor Cache 4 LGA 1151 BX80662I76700K
Corsair RM Series, RM850, 850 Watt (850W), Fully Modular Power Supply, 80+ Gold Certified
Seagate 2TB Desktop HDD SATA 6Gb/s 64MB Cache 3.5-Inch
Ballistix Sport LT 64GB Kit (16GBx4) DDR4 2400 MT/s (PC4-19200) DIMM 288-Pin - BLS4K16G4D240FSE (Red)
Corsair Hydro Series H115i Extreme Performance Liquid CPU Cooler , Black
Samsung 850 EVO - 500GB - 2.5-Inch SATA III Internal SSD (MZ-75E500B/AM)

Fenvi Desktop PC Dual Band 802.11AC Wireless WIFI PCI Express PCI-E Adapter Card 2.4Ghz-450Mbps/5Ghz-1.3Gbps + Bluetooth 4.0 Include Low-profile Bracket for MAC OS X System Hackintosh Windows 7/


PLEASE HELP MEEE!!!

 

[c.pappas]

.

 

[kiiroaka]

I'm not surprised that the nVidia WebDriver caused the OS to fail to boot. Just roll back to the version you had before. I stopped updating (turned off the update notification) at "15f02" (346.03.15f02) because the one after that driver caused it to fail to boot.

 

[c.pappas]

What steps would I take to revert back to an old driver in case it happens again? I have managed to reinstall El Capitan fresh because it was the only thing I could think of. But I would like to have a back up plan rather than going through this process over again because of a bad driver. Are there specific boot flags I need to apply?