How do I uninstall MATLAB on Windows when the uninstaller fails?

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I could not uninstall MATLAB. How do I uninstall MATLAB completely from my computer?

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 9 Oct 2020
Edited: MathWorks Support Team on 5 Mar 2021
If the MATLAB uninstaller was unable to complete, try executing the uninstall.exe from $MATLAB\uninstall (where $MATLAB is the folder where MATLAB is installed). For example:
C:\Program Files\MATLAB\R2014a\uninstall\bin\win64
If you are unable to complete the uninstaller, you can manually delete the MATLAB installation folder.
Afterwards, you can remove the MATLAB entries from the Windows System Path. For help modifying the Path in Windows, see the related article:
How do I set my system path under Windows

More Answers (4)

Bruce
Bruce on 29 Jul 2020
And how to we "safely" remove all of the drek that gets added to the registry if we have to resort to the "delete the matlab folder" option of blowing away a version of matlab that can't be installed "cleanly"
  1 Comment
Colin Fraser
Colin Fraser on 30 Jul 2020
I'm pretty sure MATLAB adds nothing to the registry other than borrowed license keys. That has it's own set of troubleshooting.
-Colin Fraser

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Bruce
Bruce on 30 Jul 2020
They don't add much, but there were about 50 entries in the registry that reference either matlab or mathworks. I don't think many of them are "important" enough to affect performace, but bloat is bloat.
  2 Comments
SMBG
SMBG on 28 Aug 2021
It can also be done a little easier. At least delete the directory.
a) open the command line (cmd.exe) with administrator rights.
b) and enter the command "rmdir /S /Q C:\..\MATLAB\" + release (e.g. R2021b)
c) wait - it takes about 10-15 minutes
The registry cleanup must still be done manually or with a cleaner.

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Charles Lee
Charles Lee on 7 Nov 2021 at 8:20
My own experience:
Delete all the files in your matlab install folder, i.e.: E:\Program Files\Polyspace\R2020a
Just install again. Problem solved.

Vladimir Sovkov
Vladimir Sovkov on 3 Dec 2021 at 6:11
I have a similar but somewhat different problem. For a couple of years, I used Matlab 2019b with Windows 10. This year I decided to switch to the newer version Matlab 2021b. After installing and testing it, I decided to remove the older one using the standard Windows tools. However, it reproted that it could not do it because it could not find "uninstall.exe". Indeed, I did not find it in the installation folders of Matlab 2019b as well (meanwhile, "uninstall.exe" exists in the installation folders of Matlab 2021b...). Are there any ideas of where it could go? Is there a way to restore "uninstall.exe" and uninstall the older version in a regular way? Or, can it only be removed manually as described in those answers above? Would not it harm the new version somehow?

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