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I have installed Matlab a long time ago and now when I am trying to run couldn't do it. More deeply, I am trying Matlab as double clicking mouse on it's icon as well right click and run as administrator but unfortunately It shows me matlab for a few seconds and disappeard suddenly. What is wrong?

Why can't run it? Just note that after some trying, maybe matlab will run,but it takes to long time. So I think that it is has a some problem with it's compatibility, but I couldn't find reason and fix it.

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Try reinstalling Matlab from the original DVD.

You could also try running Matlab directly by clicking on its .exe:

For the 32-bit version of Windows:

C:\Program Files (x86)\MATLAB

For the 64-bit version of Windows:

C:\Program Files\MATLAB
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I've run Matlab 2009-2011 on Win7 x64 without issue under admin and non-admin accounts. Start with a reinstallation to solve your problem. – edusysadmin Jan 22 '12 at 18:04

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