01.Introduction: The Placebo Effect
Players often copy and paste -high -useforcedmparms -noforcemaccel -heapsize without knowing what they do. Valve has explicitly stated: CLEAN YOUR LAUNCH OPTIONS. Modern games detect your hardware better than a command from 2012 can.
Don't do it Manually.
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02.Chapter 1: Useful Commands (Safe)
Use these:
- -novid: Removes the opening video (Valve intro). Gets you to the menu faster.
- -console: Enables the developer console (') by default.
- -freq 144 (or 240/360): Ensures the game starts at your monitor's maximum refresh rate if Windows isn't handling it correctly.
- -fullscreen: Forces exclusive full-screen mode.
03.Chapter 2: Harmful Commands (Dangerous)
AVOID These:
- -threads X: The game manages CPU cores automatically now. Inputting a manual number often leads to stuttering.
- -high: Forces High priority in Windows. This can cause mouse unresponsiveness or Discord crashes if the CPU hits 100%.
- +mat_queue_mode 2: Outdated. CS2 uses native multithreading.
- -d3d9ex: This has been enabled by default for over 5 years.
04.Chapter 3: Graphics APIs (DX11 vs. Vulkan)
In games like Dota 2, Rainbow Six, and Apex:
- -vulkan: Runs the game in Vulkan. Good for AMD GPUs or Linux. For Nvidia, DX11 is usually better.
- -dx11: The standard default.
- -dx12: Can be unstable in some games (like Fortnite) but may provide more FPS on newer GPUs. Test it for yourself.
A1.Chapter 4: CS2 Specifics
For Counter-Strike 2:
It is recommended to use NO launch options other than -novid.
The Source 2 engine does not like old Source 1 commands. Clear them out and feel how much smoother the game runs.
A2.Chapter 5: PUBG and Stuttering
For PUBG:
-USEALLAVAILABLECORES: This was useful back in 2018; today it does nothing.
-sm4: Forced Shader Model 4 (DX10) to gain FPS at the cost of lighting quality. Most games have blocked this as a "visibility cheat."
A3.Chapter 6: AutoExec.cfg
Instead of launch options, place your game settings (crosshair, binds, sensitivity) inside an autoexec.cfg file in the game's folder.
Add +exec autoexec.cfg to your launch options to ensure it always loads.
A4.Chapter 7: Shader Caching
Steam downloads pre-compiled shaders (Pre-caching).
Keep this enabled in Steam Settings (Downloads).
Disabling it can cause stutters the first time you see a new effect (e.g., a grenade exploding).
Chapter 8: RAM/Heap Limits
Never use commands like -heapsize to set RAM limits. Windows handles memory management better than these legacy commands. Setting it incorrectly can lead to "Out of Memory" crashes.
Chapter 9: Text Mode
If your PC is very weak:
The -no-browser launch option for Steam used to save about 50MB of RAM. However, Valve removed this with the new UI update. It no longer works.
Chapter 10: Restoring Defaults
Experiencing bugs? Delete EVERYTHING in the launch options box. Leave it blank, then verify the integrity of your game files.
Don't do it Manually.
Voltris Optimizer automates this entire guide and removes Windows delay in seconds.
Written by a verified expert
Douglas Felipe M. Gonçalves
Expert in Windows system optimization with years of experience in hardware diagnostics, kernel tuning, and advanced technical support. Founder of Voltris and developer of the Voltris Optimizer.
Meet the Voltris TeamConclusion and Next Steps
By following this guide on Steam Commands (2026): Cleaning Out the Junk, you are equipped with the verified technical knowledge to solve this issue with confidence.
If you still have difficulties after following all steps, our expert support team is available for a personalized remote diagnosis. Every system is unique and may require a specific approach.