# Psychtoolbox wants to install in directory for old version of Matlab

**URL:** <https://psychtoolbox.discourse.group/t/psychtoolbox-wants-to-install-in-directory-for-old-version-of-matlab/1069>\
**Category:** Uncategorized\
**Created:** [September 6, 2002, 5:46pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-wants-to-install-in-directory-for-old-version-of-matlab/1069 "2002-09-06T17:46:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Allen\_Ingling](https://avatars.discourse-cdn.com/v4/letter/a/a183cd/32.png) [@Allen\_Ingling](https://psychtoolbox.discourse.group/u/Allen_Ingling)\
**Post date:** [September 6, 2002, 5:46pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-wants-to-install-in-directory-for-old-version-of-matlab/1069/1 "2002-09-06T17:46:45Z")

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Hi,  
  
  
I've just gone through uninstalling Release 12 of Matlab (version 6.1) on  
my Windows 98 system and installing Release 13 (version 6.5). This meant  
having to reinstall Psychtoolbox also. I did this, but found that Matlab  
wasn't finding any of the Psychtoolbox commands. I looked and realized  
that the toolbox was in the directory for my old version of Matlab! I  
erased the entire path for Matlab 6.1 and installed Psychtoolbox again,  
but it actually created the whole path, including the folder for the old  
version of Matlab and the toolbox subfolder as well as its own subfolder  
within in that, just so it could avoid installing itself with the new  
version of Matlab.  
  
Help!  
  
  
paul