"syms", "sym", and "mupad" functions cause MATLAB to freeze

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Why does MATLAB hang when I try to use the "syms", "sym", or "mupad" functions?
It causes MATLAB to run indefinitely, the system freezes and memory usage increases.
Sometimes errors also appear:
Error using mupadmex
Internal error with symbolic engine. Quit and restart MATLAB.
Error in symengine
Error in sym (line 185)
symengine;

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 4 Jun 2018
Edited: MathWorks Support Team on 4 Jun 2018
This is a known bug that exists in certain Windows 10 builds. It has been fixed as of MATLAB R2018a Update 1 and MATLAB R2017b Update 7.
Here is the bug report below for more information:
As far as we know, only MATLAB R2017b and R2018a are affected. Older releases are not affected by the Windows 10 Spring 2018 update.

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R2018a

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