Start with current graphics drivers and Steam file verification. Remove unrelated launch options, then test Valve's -autoconfig and -safe options one at a time. Remove each option after a successful launch so a temporary troubleshooting setting does not become permanent.
Launch Dota 2 once and note whether Steam returns to Play immediately, a window appears then closes, the crash occurs at the menu, or a message is shown. Copy the exact error and time before changing options.
2
Install the correct graphics driver
Use the graphics hardware or computer manufacturer's official website to install the current driver for the exact device. Restart if the installer asks, then test Dota 2 once before making another change.
3
Verify Dota 2 game files
In Steam Library, open Dota 2 Properties, select Installed Files, and choose Verify integrity of game files. Wait for Steam to finish and reacquire any file before relaunching.
Open Dota 2 Properties and copy the current Launch Options somewhere private, then clear the field. Old performance, renderer, or resolution options can change the result of the next launch.
5
Test -autoconfig by itself
Enter -autoconfig as the only launch option and start Dota 2. Valve documents this as a way to restore default configuration settings. If the game starts, exit it and remove -autoconfig before the next normal launch.
6
Test -safe separately when needed
If -autoconfig does not allow a launch, replace it with -safe and test once. Valve documents safe mode as a separate launch test; do not combine both options or leave -safe enabled after the game opens.
7
Restore a clean launch and report a repeatable crash
Clear the temporary option and launch again. If the crash remains, prepare the exact point, error, driver source and version, verification result, and the outcome of each separate launch-option test for the Dota 2 bug-report route.
If Dota 2 launches only with -safe, change graphics settings gradually from the safe-mode defaults and test after each change. Do not paste a large set of community launch options into the field.
If Windows restarts or reports a hardware error, stop treating the symptom as a normal game crash and write down the Windows error before checking the driver or hardware.
ⓘ Sources and verification
Checked against official documentation on . Scope: Platform not recorded.
If a button or setting has moved after an update, use the linked official help page to find its current location.
