Solved! blue screen while playing fortnite

[primox]

Hello,
When I’m playing fortnite game on 144hz screen refresh rate I am constantly having “blue screen” problem at the start of the game or at the end.
If I change the setting on 120hz screen refresh rate the game works normally without the “blue screen” problem.
Does anybody know how to fix this problem?
My specs are :
CPU - Intel i7 8700K
RAM - Corsair 16gb 3000 DDR4
Graphic card - Asus GF GTX 1070TI 8gb

 

[rgd1101]

make and model of the psu?
gpu temp during the game?

 

[primox]

psu - Corsair ATX 750W 12V TX7500M 80plus gold
the gpu temperature during the game its like 70-71 i have a video than the game crashed

 

[primox]

now i get also blue screen with 120hz ..
i tried to format computer and install all new drivers from nvidia and asus sites and still the same..
blue screen only while playing fortnite in windows i can be whole time

 

[rgd1101]

if it just one game having issue. it usually driver issue. try a older driver. check graphic settings