Random crashes to deskopt

Hello,

Since the last patch (1.11) the game crashes to the desktop without further notice on a regular basis. The time from start to crash varies from a few minutes to 45 minutes of playing. The PC does not freeze or anything, just the game ‘is gone’. I can restart the game again immediately. Sometimes, it crashes again and sometimes it doesn´t. The last time, it crashed was while saving it crashed before during fights, riding, conversations etc. It seems, there is no specific action linked to the crashes. I never had issues before (currently about 70h of playtime since TWH v. 1.0). Although I own Hearts of Stone I am not level 32 and therefore, play the content of the ‘Standard’ game. I did not change anything on my system expect upgrading to my current graphics card (and overclocked it). But even this was weeks ago without any troubles (at least until patch 1.11 came). I already reduced the overclock of my graphics card from +150/+200 to +150/+180 after a reading another post that this might help. The game crashed even earlier after that. Game Overlay is also disabled without any relief.

My System

i5-3570k @ 4200MHZ (overclocked; tested with Intel Burn Test and several loops of the 3D Mark Physics Test – no errors/crashed)

MSI GTX 970 (overclocked as described; tested with FurMark – no errors)

8 GB Ram (Tested with Windows Tool, no errors were found)

Win 10

Edit 1: Using standard clock at the graphics card does not improve stability

Edit 2: Putting vCore to +6mV as suggested in another post does not help, either

Random crashes to deskopt