Hi all
Could couple of people who experience random freezes in game (either game 'pauses' or stops until 'display driver stopped working' message pops up and exits the game) please see if the following helps to minimize or eliminate those issues:
-Right click on your computer icon and choose properties
-On top right select 'Advanced system settings' (click 'yes' if UAC message appears)
-Click 'Settings' button and go to advanced tab
-Click change button
-Untick "Automatically manage paging file size for all drivers"
-If you have 2 physical hard drives (not partitions) select the drive that does not have witcher 3 installed on it and set the pagefile at 'Custom size': 'Initial size (MB): 9000' 'Maximum size (MB): 12000'
-Disable paging file on other partitions and hard drives
-Restart your PC
-Start witcher 3 and play for at least 30 mins (or how long you can)
-Post your results in here
--- See Pic for my Page file settings ---

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What I am hoping to see (if your system is anything like mine - does not meet min specs for the game)is that your game will be stable for longer amount of time (perhaps couple more hours). After which the same issue will re appear - 'Crash reason: EXCEPTION_ACCESS_VIOLATION'
I am suspecting that since CPU does not meet recommended specs the page file is not being handled properly by the game thus causing it to bloat and in time having memory issues. I post some more if this will seem to help people.

Forgot to add:
If anyone have problem with 'fluid' game play (aka jumpy frame rate) Please try to use RivaTuner (comes with MSI Afterburner or you can download it separately) and set the game frame rate in that program. To do that:
-Install RivaTuner
-Start RivaTuner and press big Plus sign on the bottom left corner and select wither 3 exe file (you can point to shortcut on your desktop if you too lazy to look for exe file)
-Once selected enter 'framerate limit' (suggest starting from 30)
-Minimize the RivaTuner and start witcher 3
-In video options go to graphics and set 'maximum frames per second' to 'unlimited and also try to set 'Display mode' to 'full screen'
-Post your results

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It seems RivaTuner does much better job of limiting the game framerate than the options in the game menu. By using RivaTuner I managed to eliminate 99% of game lag, shuttering or dropped frames.