Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

C:\Users\Miro\AppData\Local\Temp\YMgpNdNw.jnlp.part could not be saved, because the source file could not be read.

  • No replies
  • 2 have this problem
  • 1 view
more options

Dear Support,

I am trying to run a Java Webstart application and every time I press the button I am getting the following error:

"C:\Users\Miro\AppData\Local\Temp\YMgpNdNw.jnlp.part could not be saved, because the source file could not be read."

Java v 8u101 is installed and verified successfully - It is a puzzle why this does not work. The same page and button work flawlessly in IE 11. I am using latest Windows 10 build and Mozilla 48.

Dear Support, I am trying to run a Java Webstart application and every time I press the button I am getting the following error: "C:\Users\Miro\AppData\Local\Temp\YMgpNdNw.jnlp.part could not be saved, because the source file could not be read." Java v 8u101 is installed and verified successfully - It is a puzzle why this does not work. The same page and button work flawlessly in IE 11. I am using latest Windows 10 build and Mozilla 48.