uninstalling old version error

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ali seif el din
ali seif el din 2022-11-27
评论： Jestzer 2022-12-10
Why I am seeing these message when uninstalling R2021b version?
" C:\Program Files\MATLAB\R2021b\help\simulink\helpsearch\segments_1c (The system cannot find the file specified) "
The problem started when I tried to update the R2021b version but a problem occured and the update is corrupted and then i couldn't run matlab anymore so I downloaded the R2022b version it is working but i nedd to uninstall the older version.

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回答（2 个）

Jestzer
Jestzer 2022-12-10
编辑：Jestzer 2022-12-10
Manually delete the folder “R2021b” inside of “C:\Program Files\MATLAB\”. If you want to re-install afterwards, you should be able to with the folder removed.
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Jan
Jan 2022-12-10
Thanks for this revealing experiment. This was not the case in the version I had to re-install. "Select an empty folder" clarifies clearly, that your suggestion is important for solving the problem.
Jestzer
Jestzer 2022-12-10
Not a problem. I admittedly didn’t look at the installer’s log files, but I imagine they give more insight as to what file(s) specifically prevent the usage of the folder for installation and why the installer doesn’t like what is present.

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Jan
Jan 2022-11-27
编辑：Jan 2022-12-10
If the installation is corrupted, the uninstallation can fail. Then install this version again overwriting the existing installation folder and uninstall it afterwards.
[EDITED] Consider Jestzer's suggestion to delete the installation folder in modern Matlab versions.
  2 个评论
ali seif el din
ali seif el din 2022-11-27
编辑：ali seif el din 2022-11-27
how can I overwrite the existing installation?
Jan
Jan 2022-11-27
Simply run the installer again. Did you use the default folder to install in, then do this again. But if you have chosen a specific folder to install in, choose this folder again. Afterwards the installtion is complete and the uninstalling will run successfully.

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