How to Fix “The Witcher 3: Wild Hunt” Crash and Lagging

How to Fix The Witcher 3 Wild Hunt Crash and Lagging
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For making The Witcher 3: Wild Hunt expansion run faster you can do some tricks without buying a new graphic card. Also this guide can teach you how to fix some crashes on this game expansion.

All of the steps are tested by Newslopedy.Com Experts and we will prepare a new tutorial video for this game also.

To run this game much faster , you can do several things as its followed by the below steps:

Note: Please take attention to 4th step as its very important to run the Wild Hunt much faster...

Bonus Speed Up Trick: Make Hairworks off, and turn in-game shadows from high to low... You can get much high FPS by doing this also.

1.Disable the "NVIDIA Streamer Service" to improve performance and reduce chances of crashing

If you are using an NVIDIA GPU, then you are also likely using NVIDIA GeForce Experience. While the latter can be very useful for determining what settings your rig should lean towards, it also introduces a new service, called "NVIDIA Streamer Service", that is only used for streaming your games to SHIELD devices and is actually causing framerate issues in many recent games, including Grand Theft Auto V and The Witcher 3: Wild Hunt.

To turn this unnecessary service completely off and regain your lost framerate, as well as prevent any associated crashes, click on the Start Button on the Windows taskbar, search for "Services" and then right-click on its icon and select "Run as administrator".

After that, scroll down through the "Services (Local)" list, find and right-click on "NVIDIA Streamer Service", then select "Properties". First click on "Stop" to turn the service off and then select "Startup type: Disabled" from the drop-down menu.

 

2. Fix stuttering caused by too frequent garbage collection

The game uses a garbage collection algorithm to clear up assets that are no longer required as you play the game, but its low default upper memory limit can cause stuttering in crowded places, most notably Novigrad. To force garbage collection to trigger less frequently and thus reduce/eliminate its associated stuttering, navigate to "...\The Witcher 3 Wild Hunt\bin\config\base" and open "gc.ini" with a text editor (e.g. Notepad), then find and tweak the following variable:

ObjectMemoryTrigger=512

3. Set the "Witcher3.exe" process to "High Priority" in Task Manager to win some extra frames-per-second

NOTE: The following tweak is apparently no longer supported in Windows 10 and only works in previous versions of Windows!
It would appear that The Witcher 3: Wild Hunt is not making effective use of CPU power and that setting the "Witcher3.exe" process to "High Affinity" in Task Manager can help alleviate this problem and win you some extra frames-per-second!

With the game running, Alt-Tab back to the desktop and then press Ctrl-Alt-Del to bring up Task Manager. Find the "Witcher3.exe" process, right-click on it then select "Set Priority > High". After that, you can simply close Task Manager and Alt-Tab back into the game!
Alternatively, if you want the game to always run at a high priority, then open Notepad and copy/paste the following in a new .txt file:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\witcher3.exe]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\witcher3.exe\PerfOptions]
"CpuPriorityClass"=dword:00000003
Then save the file with the extension .reg (e.g. "witcher_priority.reg") wherever you want, double-click on it and select "Ok" to add the new key to your registry!

The 4th step is very important:

4. Tweak your GPU's control panel settings for improved performance, smoothness and visual fidelity

NOTE: The following applies to NVIDIA GPUs, but RadeonPro can be used to apply equivalent settings for AMD GPUs as well!
For improved in-game performance and smoothness:

Go to the NVIDIA Control Panel, then with the "Manage 3D settings" tab selected on the left-hand side of the window, select "Program Settings", find "The Witcher 3 (witcher3.exe)" in the drop-down menu and edit the variables below:

Maximum Pre-Rendered Frames: 1
Power Management Mode: Prefer maximum performance
Threaded Optimization: On

Click the "Apply" button, then start The Witcher 3: Wild Hunt, go to the "Options" menu, then "Video" and select to render the game in "Full Screen".

While still in the NVIDIA Control Panel, navigate to the "Set PhysX configuration" and choose to offload PhysX calculations to your CPU from the "Select a PhysX processor" drop-down menu. Then click on "Apply" and you should see a noticeable framerate improvement in-game!
For improved visual fidelity:

Also tweak the following variables in The Witcher 3's "Program Settings" in the NVIDIA Control Panel to match the values below:

Anisotropic Filtering: 16x
Antialiasing - Gamma correction: Off
Texture Filtering - Quality: High quality

Finally, click the "Apply" button and you are good to go! Check out this comparison image to see how forcing higher anisotropic filtering can improve the rendering of distant textures at an insignificant performance cost!

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