Today I did 2 flights on Vatsim from ENGM to ENTC, both times with freeze . 

First time at clicking on ND, second time, simply without doing anything, after 1:21h of flight.

I have the latest updates installed.

A screen of the second flight. P3D closed afterwards by itself.

I am using win 10 pro, i7-4790K and Nvidia GTX 1080TI, latest Nvidia Driver.

http://i.imgur.com/EOk3DCN.jpg

With the previous version (before the latest update), 737-800, I had no issues...on longer flights.

From event viewer:

Application: Prepar3D.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: exception code c0020001, exception address 00007FFBFEA39E08
Stack:
 

and then

Faulting application name: Prepar3D.exe, version: 4.0.28.21686, time stamp: 0x594a7255
Faulting module name: KERNELBASE.dll, version: 10.0.15063.483, time stamp: 0xaa6457d1
Exception code: 0xc0020001
Fault offset: 0x0000000000069e08
Faulting process id: 0x2330
Faulting application start time: 0x01d30959951b92da
Faulting application path: F:\Lockheed Martin\Prepar3D v4\Prepar3D.exe
Faulting module path: C:\WINDOWS\System32\KERNELBASE.dll
Report Id: 1c675f2b-d2b8-4b74-91ff-f50f5f68f76b
Faulting package full name: 
Faulting package-relative application ID: 

 

12 hours ago, Vali said:

Faulting module path: C:\WINDOWS\System32\KERNELBASE.dll

That module crashing can point to a heap of causes. Have you updated graphics drivers recently? Do you have any overclocked hardware?