The issue is not memory related. It is something in my save game. I started a new game, leaving all settings as they were and picked I was a patron at an Inn and then chose Winking Skeever in Solitude as my starting location to quickly get to Solitude. When I walk out of Solitude everything is there as it should be. No floating grass or trees or missing buildings.
So, the conflict is something in my old save and not memory related.
I should be able to troubleshoot from here. I appreciate all your help.
The issue is not memory related. It is something in my save game. I started a new game, leaving all settings as they were and picked I was a patron at an Inn and then chose Winking Skeever in Solitude as my starting location to quickly get to Solitude. When I walk out of Solitude everything is there as it should be. No floating grass or trees or missing buildings.
So, the conflict is something in my old save and not memory related.
I should be able to troubleshoot from here. I appreciate all your help.
I found the solution and the issue seems to be resolved.
Thank you to everyone who helped out. To quickly answer Electrocutor's last question, all the settings matched except EnableOcclusionCulling was set to false. After setting that to true the issue remained.
I then started timing how long it took to crash. Skyrim Performance Monitor has a timer so I used it again. After about 6 times the game would CTD at 15.44-15.50
Factoring in that the 44-50 seconds was start-up time I cleverly (jk) deduced that the game was crashing at 15 minutes exactly.
So, I Googled Skyrim crashes after 15 minutes and the first result had the answer.
The crash is related to Windows 10 and the Touch Keyboard and Handwriting service. I don't know if this service just auto starts with a fresh Windows 10 install or not. I definitely use the service with Splashtop Streamer and my Wacom Tablet so the service may have only been in use for me because of the way I use my PC.
So, simply going in to task manager, then Services tab, and I sorted by the Description column and found Touch Keyboard and Handwriting, right clicked on the service and chose stop.
Since doing this, I've played a few 3 hour or more sessions without an issue.
To double-check, I re-enabled the service and the CTD came back. So, I am 100% percent this was the issue. Or, the last remaining issue. I still had some fields wrong in my Enblocal.ini and so forth that all of you helped me iron out.
Again, thanks to everyone.
I'm marking this solved. All of your answers contributed to the solution and if I could mark them all Best Answer I would. I encourage anyone who finds this thread by searching their issue to read it from beginning to end to cover possible scenarios.