The program has been denied access to graphics hardware

I upgraded my PC from a FX-6300 to a Ryzen 5 1600. This also meant upgrading the motherboard and ram. I kept my Sapphire HD 7850. I set everything up, did a clean install of windows, drivers, and games. I updated to the latest bios and everything was going smoothly. Then I tried to play a game, csgo to be exact. I kept getting freezes. It would freeze for a couple of seconds and then come back, only to freeze again right after. This keeps happening until I finally get the message "CSGO.exe has been denied access to the graphics hardware." Then the screen stays on the same frame, but I can still hear all of the audio as if I'm still playing. Of course only csgo is stuck; I can alt-tab back to desktop and close csgo.

I get similar results with every game I play. With overwatch, I get a pop-up saying that "Your rendering device has been lost. The application will now close." With League of Legends, I just freeze a bit and black screen. I can alt tab back to the desktop and then back into the game and it will come back. However, I will get the black screen again very shortly.

Everything runs smoothly except games. I can even run stress tests (OCCT, MSI Kombustor) with no crashing, so I have little reason to believe that it is a graphics hardware issue. I have used DDU to uninstall my drivers and reinstall new ones, trying various versions and still getting the same results. I have tried putting my brother's Radeon HD 7750 into my computer and same results. I have tried clean installs of windows to no avail. I have used CCleaner to clean up the registry. At this point, I'm a lost. Any help would be appreciated.

Thank you.
 
Solution
1. Before you installed windows, did you disconnect internet access so Windows could not install any hardware drivers ?

2. Did you disable Windows Update's ability to install hardware drivers before reconnected internet access ?

If not .... after disabling WUs ability to install HW drivers

https://www.tenforums.com/tutorials/48277-enable-disable-driver-updates-windows-update-windows-10-a.html
http://www.sevenforums.com/tutorials/82137-drivers-turn-off-automatic-driver-installation.html

a) Uninstall all AMD / Chipset GFX related driver items.
b) Clean registry of all AMD related items (suggest clicking just one checkbox in left pane at a time)
c) Reinstall all hardware drivers for MoBo and GPU from hardware manufacturer's web site
1. Before you installed windows, did you disconnect internet access so Windows could not install any hardware drivers ?

2. Did you disable Windows Update's ability to install hardware drivers before reconnected internet access ?

If not .... after disabling WUs ability to install HW drivers

https://www.tenforums.com/tutorials/48277-enable-disable-driver-updates-windows-update-windows-10-a.html
http://www.sevenforums.com/tutorials/82137-drivers-turn-off-automatic-driver-installation.html

a) Uninstall all AMD / Chipset GFX related driver items.
b) Clean registry of all AMD related items (suggest clicking just one checkbox in left pane at a time)
c) Reinstall all hardware drivers for MoBo and GPU from hardware manufacturer's web site
 
Solution

The ryzen chip doesn't have integrated graphics unfortunately. As I said though, I tried using my brother's 7750 and the same problem was happening.