@longjohn119 Thanks for the explanation, and you are totally right. At first i thought the cache folder was maybe the issue but i was wrong, even though it lessen the crashes, that was not the issue. The issue was the borderless mode in the game setting. I dont know why, but i didn't try to run the game in fullscreen. Like you said, if i ran the game in fullscreen, i get zero crashes. I tried to delete the post, but it doesn't let me, because it is not relevant anymore, the crashes stopped once i enabled fullscreen instead of borderless.

So whoever is reading this, ignore the steps in my post, and just run the game in fullscreen, and don't use borderless in the game settings.

@ubi-froggard Thank you very much

@longjohn119 @Randelia
I keep seeing in the event viewer about nvlddmkm everytime the game keeps crashing 2 days ago, tried looking into it, and nvlddmkm is something about nvidia, so i rerolled to the nvidia driver 457.30, basically day 1 driver for ac valhalla, and updated my monitor, the crashes are completely gone.

So final verdict, run game in fullscreen, use nvidia driver 457.30, and update your monitor if you can, that's it, i think the problem is the nvidia driver, and the windows mode, keep it in fullscreen.
I went from crashes every couple minutes to no crashes in 2 days.

Finally can play the game, lol

@longjohn119 Thanks for the explanation, and you are totally right. At first i thought the cache folder was maybe the issue but i was wrong, even though it lessen the crashes, that was not the issue. The issue was the borderless mode in the game setting. I dont know why, but i didn't try to run the game in fullscreen. Like you said, if i ran the game in fullscreen, i get zero crashes. I tried to delete the post, but it doesn't let me, because it is not relevant anymore, the crashes stopped once i enabled fullscreen instead of borderless.

So whoever is reading this, ignore the steps in my post, and just run the game in fullscreen, and don't use borderless in the game settings.

I think i found a fix for all the crashes, the problem is the cache folder in document/Assassin's Creed Valhalla folder.

If i delete the cache folder and start the game the game doesnt crash, but while playing the game a new cache folder is generated and gets populated with library files and the game crashes randomly.
but luckily windows allows us to block the folder from being accessed by the game, thus the game cant generate any folders inside the document/Assassin's Creed Valhalla folder.

Steps:
delete all folders inside document/Assassin's Creed Valhalla folder except for the ACValhalla configuration file.
Open windows defender security center
click on virus & threat protection
under virus & threat protection settings click manage settings
scroll down until you see controlled folder access and click manage controlled folder access
enable it
click on protected folders
add document/Assassin's Creed Valhalla to the list
start the game, if you get a notification that acvalhalla.exe app is blocked from accessing the folder, you done it right

hopefully this works for you.

Update:
Since i posted this, i didn't have any crashes. However the game attemped to make a new folder (Assassin's Creed Valhalla folder) somewhere else, in my case it was in the same drive where the game was installed.
Follow the same steps, i am 100% sure that the cache folder is the culprit, i went from crashes every minute to no crashes, i even tried to crash the game, like alt tabbing a lot, leaving the game in background, and still the game wont crash.
I am also running the game as admin, with windows 8 compatibility mode and disable fullscreen optimization enabled + i run the game manually from the root folder where the game.exe file is located.

Edit -  ignore the steps in my post, and just run the game in fullscreen, and don't use borderless in the game settings

I'm so done with this game and watch dogs legion, bought both of them at launch, it just keeps crashing. i played wd legion only for 24 minutes, and valhalla for 10 hours guess what still in norway, still in fornburg area haha, i mean c'mon, this is ridicilous, i have better things to do than waste my time.