I am attempting to download a file with Firefox and I see this error:

C:\Users\Lynda\Desktop\Sample.psd.zip.part could not be saved, because the source file could not be read.

Try again later, or contact the server administrator.

I see this happen quite a bit and very sporadic from many different sites.

What is going on and why does this happen?

Note I am using Firefox 15, but have seen this error for several versions. Also I am on Windows 7 64-bit.

  • Does it happen in a different browser? Have you tried reinstalling Firefox? What else have you tried?
    – user3463
    Jul 30, 2012 at 2:46
  • @RandolphWest - Have not tried other browsers but I was attempting to update VLC and it gave me an error saying the download file was corrupted. Have not seen that error before and assume they are related. I will attempt to use another browser to nail down the error. And yes I have re-installed FF since this has happened.
    – L84
    Jul 30, 2012 at 4:21
  • Can you please test if this is a SourceForge problem? I've noticed that sometimes, the SF location you're directed to can time out on occasion. I know that VLC uses SF as their download partner.
    – user3463
    Jul 30, 2012 at 4:32
  • @RandolphWest - This is more than a SF problem as I have seen it across many many sites.
    – L84
    Jul 30, 2012 at 16:15
  • Make sure you try all the steps in kb.mozillazine.org/Source_file_could_not_be_read . Also, you can try disabling the windows security policy check -- in "about:config", set "browser.download.manager.scanWhenDone" to false.
    – William
    Oct 15, 2012 at 4:45

1 Answer 1


Please try to download this file using Internet Explorer to have a try. Remember to turn off Pop-up Blocker on the Privacy tab. In addition, you may need install a application to open ZIP file.

  • 1
    How does this help the OP? They are able to start the download but it fails part way through.
    – Burgi
    Apr 27, 2016 at 16:14

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.