I am running windows Vista 32-bit on an HP G60 235-DX. I could run Unity 2.x fine. I am using this for my game design class, so I need to get this fixed!
Due to a bug in Vista, some machines need to have "Data Execution Prevention" disabled before the Unity Editor will run. To disable it, go to Start->Settings->Control Panel (Classic View)->Performance Information and Tools->Adjust Visual Effects->Data Execution Prevention. Enable the option "Turn on DEP for all programs except:", then click Add, and add the Unity Editor.
Hope this helps
don't work for me >< (Vista x86). I could run 2.x but i can't run 3.x ><
In case any Mac OS users land here with the same problem, i.e., "Unity crashes immediately on startup", please try the following.
It requires the root password.
From the terminal:
sudo su
Then run:
/Applications/Unity/Unity.app/Contents/MacOS/Unity
If it says it requires read and write permissions, allow it. It will then go on to import the bootcamp assets and start Unity without crashing.
If not, please contact support@unity3d.com
Cheers, Raja
You should get a different version of Unity.