If you are on the same boat, welcome to find solutions from this article onMiniTool Website.
COD Vanguard Dev Error 10323
You may encounter COD Vanguard dev error 10323 when gaming.
Luckily, you’ve got the option to find some possible solutions in this post.
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How to Fix Dev Error 10323 Vanguard?
Right-punch theWindowsicon and highlightDevice Managerin the drop-down menu.
ExpandDisplay adaptersto show your graphics driver.

Right-choose your graphics driver and chooseUpdate driver.
HitSearch automatically for driversand follow the on-screen instructions to update the GPU driver automatically.
OpenCall of Duty Vanguardand go to its main page.
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ClickSettings>Graphics>Display.
Scroll down to findOn-Demand Texture Streaming, hit it and then turn offOn-Demand Texture Streaming.
RunBattle.net Clientand chooseCall of Duty Vanguard.

PressOptions>Scan and Repair>Begin Scan.
This scanning and repairing process may take some time, c’mon wait patiently.
If you cannot open Battle.net Client now, you might find solutions in this post -Battle.net Not Opening?
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Here Are Top 5 Solutions.
Close all the apps and programs associated with the game.
PressWin + Rat the same time to open theRunbox.
Step 3. jot down%ProgramData%and hitEnter.
Locate theBlizzard Entertainmentfolder and right-click it to chooseDelete.
Step 5. reboot your rig and relaunch the game again to see if the error is gone.
Heres how to do it:
Step 1.
PressWin + Ito openWindows prefs.
In the options menu, scroll down to findAppsand press it.
InApps & features, findCall of Duty Vanguardand hit it to chooseUninstall.
Download & load the game from Battle.net Client to see if dev error 10323 Vanguard is fixed.
Are you getting the Riot Vanguard crashed error when playing Valorant?
If so, welcome to find feasible solutions from this post now!