I can't open matlabR2025a after installing it

After installing matlabR2025a, it gets stuck on the startup page. Trying to reinstall and delete the folder under Roaming does not solve the problem.

[Star Strider]

What operating system are you using?

[Image Analyst]

What is Romaing? I'm pretty sure if you do what it says in the FAQ, you'll get it working soon.

https://matlab.fandom.com/wiki/FAQ#After_installation,_MATLAB_crashes_or_gives_an_error_message_when_I_try_to_run_MATLAB.

[Steven Lord]

I'm assuming it's a typo referring to the directory for a roaming profile.

[Alexander]

I'm also having this issue on WIndows 10

[Satwik]

Hello

Kindly share any crash log if generated or error message if encoutered.

You can refer to the following MATLAB Answers post to check if a crash log is being generated: https://www.mathworks.com/matlabcentral/answers/100816-how-do-i-locate-the-crash-dump-files-generated-by-matlab

[magie]

Same problem with new PC running on Windows 11. No error log files created. R2024b runs perfectly fine so far. Recent update to R2025a, even reinstalled doesn't start - stucked with blue logo at best, mostly cannot see the logo either. Computer requirements according to Mathworks information met.

[Image Analyst]

@magie so I'm assuming you read the comments above and read the FAQ. So when you called them on the phone and talked to a real live person, how did he or she resolve the problem for you?

[Evan]

Any update on how to solve this? I'm encountering the same issue. Sometimes the blue Matlab window doesn't even appear.

[Image Analyst]

No, @magie nor @Potter never came back to tell us how tech support solved it. But I'm sure you will, right @Evan? Please call them and let us know what they said.

@magie, are you still alive? How about you @Potter?

Answer 1

[Evan]

This is the response I got from MathWorks Support and just the first 7 steps worked for me. Not sure why a clean install wouldn't work but here you go!

"Thank you for contacting MathWorks Support.

If you haven't done so already, please restart your computer and try to regenerate the MATLAB preferences directory by following these steps:

1. Close MATLAB
2. Press the Windows Key + R on your keyboard
3. In the newly opened window in the bottom left corner of your screen type in the following: %appdata%
4. Press Enter on your keyboard. This should bring you into folder named "Roaming".
5. Navigate into the "MathWorks" folder and then "MATLAB" folder.
6. Rename the folder for your release of MATLAB, e.g R2025a to R2025a_old. Do not remove any folder that ends with "_licenses".
7. Launch MATLAB

If the issue is not resolved after doing this, try launching MATLAB with each of the below commands from Windows's Command Prompt:

matlab -nojvm matlab -softwareopengl matlab -nodesktop

If "matlab" is an unknown command, use the command below to navigate into the MATLAB installation directory first:

cd "C:\Program Files\MATLAB\R2025a\bin"

If MATLAB starts with the -nodesktop flag, try typing 'desktop' after opening MATLAB in the command prompt to see if it will open in the full graphics mode. If MATLAB starts in either of these modes, this likely indicates a problem with your Java configuration. You can check to see if there is a MATLAB_JAVA environment variable that may be changing the JVM that MATLAB is using. If this variable exists, try removing it. For additional troubleshooting steps to take if the issue persists, please see this article:

Why will MATLAB not start up properly on my Windows based system?

https://www.mathworks.com/matlabcentral/answers/97167

"

[Image Analyst]

@Evan, thanks for posting the procedure that gets it working again. I'm sure it will help others in the future. 🙂

[Iewan]

Thanks for the help @Evan.

Can confirm the first section fixed the same issue on my side.

Answer 2

[Maurice]

This might be a one-off solution, but just starting the "Activate MATLAB R2025" start menu app or "MathWorksProductAuthorizer.exe" and activating matlab that way worked for me. Then I could start MATLAB R2025 the normal way.

(Win 10 Pro user)

[Jason]

I had the same issue, and this method actually worked for me as well.

Thanks Maurice!