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Thread: BUG – Failure to launch dota 2 64bit version from steam library

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BUG – Failure to launch dota 2 64bit version from steam library

Yesterday, I could not launch dota 2 from my steam library. Once I clicked the play button, my mouse icon would change to the loading state, steam client would say I was playing dota 2 but the client never launched, after 10-15 seconds steam would update my state to “online but not playing anything”

Using windows 10 64bit. Tried the Vulkan APU, had worst performance, went back to dx, still using steam beta client.

Issue started yesterday. I figured steam library was trying to launch the 64bit version of dota by default because I had no launch options defined and it kept crashing at launch, also generating these access violation dump files onto the folder C:\Program Files (x86)\Steam\steamapps\common\dota 2 beta\game\bin\win64. I zipped and attached some of those dump files below.

To fix this I added “-32bit” and now everything is working just fine.

Shame I can’t use the 64bit version, was looking forward to test it.

I have the same issue. I recently installed Windows 8.1 and problems presented in all my steam games. I updated my Nvidia driver and all games started to work normally again except for Dota 2. It just shows the loading screen, loads the Dota 2 cursor and then closes. I tried running the 32 bit version but the same problem keeps happening. їAny help or tip?

There is no performance difference between the two versions. Both 32bit and 64bit will memory leak about the same amount. so keep using the 32bit one, it’s fine.

If you want to know why the 64bit version is crashing on your system, the answer is because of an external program you have installed that is affecting Steam and Dota 2.
It could be a glorified spyware bundled with some peripheral (Razer in-game engine stuff) or gpu (Raptr), other stuff featuring in-game overlays (Overwolf, TeamSpeak, Discord etc), a bad antivirus, etc. etc.
Steam has an extensive list of software that do not play well.
On Windows 10 you might want to disable XBox/GameBar:
Win+G > Settings > uncheck everything
regedit > [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PolicyManage r\default\ApplicationManagement\AllowGameDVR] “value”=dword:00000000
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PolicyManage r\default\ApplicationManagement\AppCaptureEnabled] “value”=dword:00000000
You should also disable streaming in Steam and in your GPU software (Geforce Experience).

Steam beta client just updated and everything is back to normal. Aparently the 64bit version was crashing because of steam, not my system, since I haven’t installed/unninstalled anything for the last week. Thanks for reading and trying to help anyway.

In the posted dumps the system is loading a gamepad driver that includes the DLL:

which causes crashes in 64-bit mode.