Eror When Instal Unity3d

sorry if i wrong place to ask.. but this really important...

my computer have spec for gaming... but when i want to run unity.exe, it display a message like this...

![](http://i54.tinypic.com/afas8x.jpg)

what i need more???

thx....

i was post on forum but none responding my problem... this the link... http://forum.unity3d.com/threads/66010-Eror-When-Running-Unity.exe

As a forum answer suggests, this may be related to security settings on windows. Disable UAC / DEP and see if it is related. A quick google search pointed me to this tutorial on how to do it for Windows XP:

http://forums.techarena.in/guides-tutorials/1119812.htm