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I installed blender on a windows 7 64 bit system. I opened it one time then went to the tutorials. in the meantime I had a power failure and when I tried to start blender again I get a dos window that closes itself then nothing.

I reinstalled Blender and get the same thing. I am going to try to uninstall then reinstall but in the mean time, any other suggestions are welcome.

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    $\begingroup$ Welcome to Blender.SE Bill. We can help you but you have to be very specific and include as much information as possible. Does the window print a message? Have you tried installing another version of Blender? It could be a corrupt file etc. Try starting blender from the command line and seeing what it says. $\endgroup$
    – iKlsR
    Aug 8, 2013 at 3:20
  • $\begingroup$ didnt work for me :( i just start up blender and, it launches a command window ........BANG blender has stopped working. $\endgroup$
    – user5364
    Jul 26, 2014 at 13:38
  • $\begingroup$ Your problem may or may not be a command prompt error. Is there a Windows 7.0/8 command prompt open up when you click on your selected application? $\endgroup$
    – user12698
    Feb 19, 2015 at 23:59

4 Answers 4

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More than likely the problem is that your startup.blend and or userpref.blend file was corrupted. To fix this, just navigate to the user settings directory and delete them.

On Windows, the directory is located at C:\Users\USER_NAME\AppData\Roaming\Blender Foundation\Blender\2.xx\config. See this post for more information on how to locate this directory on your os. This can work for both portable copies and installations.

OR

When uninstalling the program, tick Remove all files (second option) to make it delete the directory and then reinstall.

enter image description here

The next time you start Blender, it should start normally and if you tweak the interface and or change the user preferences and save them, it will write out new copies of these files with your new settings.

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  • $\begingroup$ I ran into this issue, and this worked for me... I'm going to start making backup copies of these files. :( $\endgroup$
    – Michael Bray
    Jul 25, 2015 at 22:17
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I fixed it on my system (Windows 7 32-bit) with a bat file that has the following content:

set PYTHONPATH=""
"%ProgramFiles%\Blender Foundation\blender\blender.exe" "%1"

Put the above in a file called blender.bat and associate .blend files with the blender.bat file.

Also, make sure that any .blend file pathname has no spaces.

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Difficult to say what's going on there Bill, but sounds to me like a registry issue or an over zealous virus scanner that associates the shutdown with the programs running at the time.

A temporary solution

It is possible to run blender without installing it, there are portable .zip archives available from either the main download links on blender.org or daily development builds at builder.blender.org

Unpack any of these zips to a convenient directory, and start blender by clicking the blender.exe from there.

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I had the same issue on a fresh install of windows 7 64bit...

I went to the Blender Foundation folder in program files and ran Blender-app and it worked..

Blender 2.73a

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