Nvidia, Blue Screen of death when starting game or alt tab when playing game

Hi, My laptop Acer Nitro AN515 54 connected with external monitor Acer Nitro Vg240y by HDMI . I have BSOD almost each time when I use alt+tab from games like League of Legends or War Craft 3 Reforged or sometimes when I just launch War Craft 3 Reforged. So In a windows safe mod and if I use alt+tab without using my monitor I have no problems also I have no problems if I use windowed or borderless mod in the game.

All latest official drivers from Acer and Nvidia updated, windows and BIOS too. Also I have blue screen dump file.
I have no problem with memory, disk or video card. Memory diagnostic, chkdsk and test with furmark successfully passed.

I think problem around Nvidia Threaded optimization and Vertical Sync. When Threaded optimization "OFF" and Vertical Sync "ON" the less chance to get BSOD.

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Dump File : 071120-7093-01.dmp
Crash Time : 7/11/2020 11:12:03 PM
Bug Check String :
Bug Check Code : 0x00000119
Parameter 1 : 00000000`00000e00
Parameter 2 : ffffca03`2f0f0000
Parameter 3 : ffffca03`2f17cbf0
Parameter 4 : ffffca03`2f17cef0
Caused By Driver : nvlddmkm.sys
Caused By Address : nvlddmkm.sys+81aecc
File Description :
Product Name :
Company :
File Version :
Processor : x64
Crash Address : ntoskrnl.exe+1c2390
Stack Address 1 :
Stack Address 2 :
Stack Address 3 :
Computer Name :
Full Path : C:\Windows\Minidump\071120-7093-01.dmp
Processors Count : 12
Major Version : 15
Minor Version : 18362
Dump File Size : 1,669,268
Dump File Time : 7/11/2020 11:13:31 PM
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Filename : dxgmms2.sys
Address In Stack : dxgmms2.sys+2a4c9
From Address : fffff801`584d0000
To Address : fffff801`585aa000
Size : 0x000da000
Time Stamp : 0x90bc4ea1
Time String : 12/12/2046 11:40:01 PM
Product Name : Microsoft® Windows® Operating System
File Description : DirectX Graphics MMS
File Version : 10.0.18362.836 (WinBuild.160101.0800)
Company : Microsoft Corporation
Full Path : C:\Windows\system32\drivers\dxgmms2.sys
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Filename : nvlddmkm.sys
Address In Stack : nvlddmkm.sys+81aecc
From Address : fffff801`5d2f0000
To Address : fffff801`5eaef000
Size : 0x017ff000
Time Stamp : 0x5f0225bf
Time String : 7/5/2020 10:10:55 PM
Product Name :
File Description :
File Version :
Company :
Full Path :
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Filename : watchdog.sys
Address In Stack : watchdog.sys+41a0
From Address : fffff801`59980000
To Address : fffff801`59996000
Size : 0x00016000
Time Stamp : 0x21474799
Time String : 9/11/1987 3:45:13 AM
Product Name : Microsoft® Windows® Operating System
File Description : Watchdog Driver
File Version : 10.0.18362.1 (WinBuild.160101.0800)
Company : Microsoft Corporation
Full Path : C:\Windows\system32\drivers\watchdog.sys
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