Portal 2 > General Discussions > Topic Details
khristine87 May 8 @ 10:40pm
I can't launch PORTAL 2 (PC)
When I download it on my Mac it works fine.

Now whenever I want to launch it using my PC it doesn't work.

Now, I tried reinstalling it for 12 times and it doesn't work.
I tried to Verify the integrity and still doesnt work.
My PC works fine and fast so no problem with that. (I use Windows 7 (Intel i7))

Please help me.. :(
Showing 1-11 of 11 comments
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Peginis001 May 9 @ 5:13am 
I have same problem, it won't start up at all just crashes :(
AdmiralFrantik May 9 @ 12:03pm 
A Friend of mine had the same problem and this helped him:

1. Gain ownership of C:\WINDOWS\SYSWOW64\WBEM\FASTPROX.DLL and assign yourself Full control of the file if necessary.
2. Rename FASTPROX.DLL at this location to FASTPROX.DLLOLD
3. All steam games will now launch without shaderapidx9.dll error. System restore can still successfully generate restore points.
khristine87 May 9 @ 6:31pm 
I can't rename it :(
AdmiralFrantik May 9 @ 11:13pm 
read the full article, maybe there is an sulution
Nero The Lime May 10 @ 12:48pm 
I had this exact same problem for 2 years, but i think this worked.
1. Uninstall portal 2.
2. Opt to run source in administrator mode.
3. reinstall portal 2.
4. it should prompt you to launch it before it launches, forcing it to launch.
5. if that dosen't work, god help you.
Thor, Chicken of Thunder May 10 @ 4:01pm 
Try verifiyng the game cache
Peginis001 May 10 @ 4:02pm 
Doesn't work :(
khristine87 May 11 @ 12:31am 
free_rider May 11 @ 1:01am 
test parts of the engien with source sdk and hammer
Peginis001 May 11 @ 1:45am 
I renamed it but it didnt work anyway :(
AdmiralFrantik May 11 @ 1:46am 
sorry if that dont work i have no idea :(
How about you guys write at valve support

maybe they can help you
Last edited by AdmiralFrantik; May 11 @ 1:46am
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Date Posted: May 8 @ 10:40pm
Posts: 11