How to Fix White Screen | Tainted Grail The Fall of Avalon — *Image Credits: Questline, Tainted Grail: The Fall of Avalon*

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If Tainted Grail: The Fall of Avalon is stuck on a white screen or just won’t load at all, there are several real fixes that have helped players across various setups.

Whether it’s a graphics issue, save file conflict, or just general launch failure, this guide covers every proven solution, including how to handle sneak attack-related crashes, Visual C++ errors, and more.

Try Switching to DX11 or DX12 First

Adjust the launch options

Right-click the game in Steam
Go to Properties
In Launch Options, type in -dx11
Try launching the game

If that fails, switch it to -dx12 and test again.

If neither one works, clear the launch options and move on.

Run as Admin & Compatibility Fixes

Open the local install folder

Right-click the game
Select Manage → Browse local files
Find the .exe file
Right-click it → Properties

Then:

Under the Compatibility tab
Check Run this program as administrator
Try also checking Disable full screen optimizations
If needed, try Windows 8 or Windows 7 compatibility modes

Apply changes, launch the game, and test each tweak individually.

Verify Game Files

Corrupt install? Fix it this way

Right-click the game in Steam
Go to Properties
Click Installed Files
Hit Verify Integrity of Game Files

Let it run to 100%. Then try launching again.

Turn Off Overlays and Extras

Get rid of background noise

Disable Steam overlay in game properties
Close Discord, GeForce Experience, and other overlays
If you use MSI Afterburner or anything similar, turn it off
Undo any overclocking or undervolting

Also unplug any USB wheels, pedals, extra monitors, or odd controllers... just for now.

Reinstall GPU Drivers the Clean Way

Nvidia users:

Go to Nvidia.com
Download the latest driver for your GPU
Run the installer → choose Custom Install
Check Perform a clean install

Restart your PC after it finishes.

AMD users:

Fully uninstall current drivers first
Then go to AMD.com
Download and install the latest drivers for your card
Restart when done

Set the Game to Use Your Dedicated GPU

Tell Windows what to prioritize

Open Graphics Settings from the Windows search bar
Click Browse and add the game’s .exe file
Once added, click Options
Set it to High Performance and save

Allow Through Antivirus and Firewall

Make sure security isn’t blocking it

Open Windows Security
Go to Virus & Threat Protection
Click Manage Ransomware Protection → Allow an app
Add the game’s .exe file

Also:

Open Control Panel
Go to Windows Defender Firewall
Allow the game through both Private and Public networks

Reset Save Files (With Backup)

If your save is corrupted

Go to: C:\Users\[YourName]\AppData\LocalLow\Questline
Find the game folder
Copy it to your desktop as a backup
Then rename or delete the original folder
Try launching the game again

Note: This wipes progress, so only do this if nothing else works.

In-Game Settings (If It Launches)

Lower settings to avoid white screen

Turn V-Sync off
Drop graphics from Ultra to High or Medium
Set DLSS to None
Try Windowed Mode instead of Borderless
Lower your resolution to 1080p or less

If you can't reach these settings because the game won’t open at all, skip this section.

Install or Repair Visual C++ Files

Go to Microsoft’s site
Download both x64 and x86 versions of the Visual C++ Redistributables
Run both installers
Choose Repair if it shows up, or Install

Restart your PC when done.

Update Windows and BIOS

System-level fixes

Open Windows Update
Install every available update
Restart and try again

Still broken?

Visit your motherboard or laptop manufacturer’s website
Download the latest BIOS update for your exact model
Carefully follow instructions (make sure your battery is charged if using a laptop)

Reinstall the Game on a Different Drive

If everything fails:

Uninstall the game completely
Reinstall it on a different drive
- If it was on C:, try D:
- If it was on an external, move it to an internal SSD

Final Blurb & FAQ

White screen issues in Tainted Grail: The Fall of Avalon can come from anything; GPU drivers, broken save data, or just a simple overlay conflict. The fixes above are confirmed to help, and usually one of them gets the game running again.

Work your way down the list, make backups when needed, and don’t forget to restart your system after major changes.