Why is MATLAB R2024b startup taking a long time in the "Session Initialize" stage?

MATLAB R2024b takes over a minute to startup.

The timing logs indicate that most of the startup time is spent in the "Session Initialize" stage:

    MATLAB Startup Performance Metrics (In Seconds)

total   item     gap      description
=========================================================
 0.00   0.00    0.00   MATLAB script                           
 0.21   0.21    0.00   main                                    
 0.27   0.06    0.00   Session Initialize                      
61.15   0.00   60.88     Toolbox cache load Start              
61.15  60.83    0.05   Session Initialize                      
61.32   0.08   61.24   LM Startup                              
61.42   0.00    0.09   splash                                  
61.53   0.38   61.15   cachepath                               
62.43   0.27    0.74     Constant Initialization               
62.48   1.06    0.00   Engine Startup                          
62.77   0.30    0.00      InitSunVM                            
64.94   2.11    0.05      PostVMInit                           
64.94   2.46    0.00     mljInit                               
65.58   0.64    0.00     StartDesktop                          
65.58   3.10    0.00   Java initialization                     
65.64   0.00    0.05   psParser                                
65.64   0.00    0.00   Toolbox cache join                      
65.66   0.02    0.00   Package Registry initialization         
66.68   0.81    0.22   matlabpath                              
66.95   0.06    0.21   matlabpath                              
67.19   0.08    0.15   matlabpath                              
67.28   0.06    0.02   matlabpath                              
67.37   0.07    0.02   matlabpath                              
67.52   0.11    0.04   matlabpath                              
67.65   0.10    0.02   matlabpath                              
67.75   0.08    0.02   matlabpath                              
67.81   2.23   65.58     Init Desktop                          
67.84   0.07    0.02   matlabpath                              
68.34   0.47    0.03   matlabpath                              
68.41   0.06    0.02   matlabpath                              
68.54   0.11    0.02   matlabpath                              
68.62   0.07    0.02   matlabpath                              
68.72   0.08    0.01   matlabpath                              
68.82   0.08    0.02   matlabpath                              
68.90   0.06    0.02   matlabpath                              
69.00   0.09    0.02   matlabpath                              
69.08   0.06    0.02   matlabpath                              
69.16   0.06    0.01   matlabpath                              
69.23   0.05    0.02   matlabpath                              
69.32   0.08    0.02   matlabpath                              
69.41   0.07    0.02   matlabpath                              
69.48   0.06    0.02   matlabpath                              
69.56   0.06    0.02   matlabpath                              
69.76   0.18    0.02   matlabpath                              
69.84   0.06    0.02   matlabpath                              
69.93   0.07    0.02   matlabpath                              
70.01   0.06    0.02   matlabpath                              
70.09   0.06    0.02   matlabpath                              
70.17   0.06    0.02   matlabpath                              
70.24   0.06    0.02   matlabpath                              
70.32   0.06    0.02   matlabpath                              
70.40   0.06    0.02   matlabpath                              
70.47   0.06    0.02   matlabpath                              
70.55   0.06    0.02   matlabpath                              
70.73   0.15    0.02   matlabpath                              
71.13   0.01    0.40   matlabrc                                
71.14   0.00    0.00   Startup File                            
71.20   5.62   65.58   Ready                                   
=========================================================
Items shown account for 105.7% of total startup time

There is little difference in timing logs when launching MATLAB with no desktop, or between cold and warm startups.

How can I reduce the startup time? 

Answer 1

[MathWorks Support Team]

The timing logs indicate that MathWorks Service Host (MSH ) may be corrupted on your machine.

To address this issue, please re-install MathWorks Service Host by following the MATLAB Answers post on How do I uninstall and reinstall the MathWorks Service Host?