3)Set the size of you page file to System Managed.
Go System > About > Advanced System Settings.A new windows (System Properties) will appear, here click on Advanced Tab > Settings.It will open Performance Options here again click on Advanced Tab > Change.Under the Virtual memory section, checkbox “Automatically manage paging file size for all drives” and click OK
This may be already ticked but always check.
4) Run compatibility troubleshooter.
Go to the Folder where you have installed the Division 2. Right-click on the file Division.exe and select Properties.Click on the Compatibility tab and then click Change high DPI settings. In the new windows check the box next to Override high DPI scaling behavior and select Scaling performed by: Application. Then click OK to save the changes.Tick the box next to Disable Fullscreen optimizations and click OKApply and OK
5)Restart your PC
6) Always Verify game files for files that might be missing. From Uplay launcher, or wherever you playing from, steam, etc. From local files Verify Integrity of Game Cache.
7) Optional. Try this only if you still have crashes. Disable Ubisoft / Steam overlay. I have not done it since all other steps worked out.
Open Ubisoft OverlayClick on the “Menu” button on the top left corner and select “Settings”.In settings, click on the “General” tab and uncheck the “Enable in-game overlay for supported games” option.
As mentioned previously, this has helped me and other players running the game with no crashes at all since last patch so if you still have issues then you will have to check your PC and make further checks as any minimal thing can be the cause and not necessarily the game's fault. If you have a big list of updates in Windows update, then most likely that is the problem. Do that and then do all these steps from above.