MiKTeX installation error "Too many open files"


I had the same problem, too. My system is Microsoft Windows 7, 64bits. I have tried to

  • 1) download MikTeX from another repository,
  • 2) reinstall it several times,
  • 3) install 32bits version,
  • 4) close all programs before installing in order to gain some memory etc, but the this problem persisted.

Finally, I solved it as follows:

  • 1) I installed the basic version of MikTex for Windows 64bit.
  • 2) I opened the MikTeX program from Start.
    • chose Maintenance (Admin) - > Settings -> Packages, checked every entry in the list below and pressed Apply.

Then, MikTeX installed all selected packages.


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Updated on June 18, 2020


  • fajar
    fajar almost 3 years

    I tried to install MiKTeX 2.9. Some information:

    • OS: Windows 7, Intel i7, 8 GB RAM.
    • MiKTeX install file: setup-2.9.5987.exe
    • Install from: local repository (downloaded first), full install.
    • Repository date: June 7 2016, version 6002
    • I previously used MiKTeX, today I just want to update the whole thing as usual. The update gave unusual error (won't compile pdflatex), so I tried to uninstall-and-install everything.

    It went OK (copied all packages) but in the end it showed the error

    The operation could not be completed for the following reason:

    Too many open files: path="C:\MiKTeX\miktex/config\packages.ini"

    Details: path="C:\MiKTeX\miktex/config\packages.ini"


    MiKTeX installation error

    Installation log:
    initializing setup service...
    starting installer...
    Loading package database...
    starting package maintenance...
    installation directory: C:\MiKTeX
    package repository: D:\MiKTeX_2.9_Source
    visiting repository D:\MiKTeX_2.9_Source...
    repository type: local package repository
    loading lightweight database...
    lightweight database digest: f6ae0b4a4f8fe510da4d61a2253d6bd4
    going to install 113893 file(s) (3096 package(s))
    extracting files from 12many.tar.lzma...
    extracting files from a0poster.cab...
    extracting files from a4wide.tar.lzma...
    extracting files from a5comb.tar.lzma...
    extracting files from aastex.tar.lzma...
    extracting files from abc.tar.lzma...
    % SNIP
    extracting files from zxjafbfont.tar.lzma...
    extracting files from zxjafont.tar.lzma...
    extracting files from zxjatype.tar.lzma...
    updating package definition directory (C:\MiKTeX\tpm\packages)...
    installed 115 package definition files
    visiting repository D:\MiKTeX_2.9_Source...
    repository type: local package repository
    loading lightweight database...
    Error: Too many open files: path="C:\MiKTeX\miktex/config\packages.ini"

    How to proceed?

    • Ulrike Fischer
      Ulrike Fischer almost 7 years
      I get similar messages irregularly too when I open the package manager sourceforge.net/p/miktex/bugs/2499/?limit=25#c3d8/f462/1208. But they normally disappear the next time so it is difficult to make a sensible bug report. If you can reproduce it you should add a ticket to the miktex bug tracker.
    • MaestroGlanz
      MaestroGlanz almost 7 years
      This looks like a misleading error message. Dont trust it.
    • fajar
      fajar almost 7 years
      @UlrikeFischer, I've been trying (installing fresh MiKTeX) 4 times in a row now, and still got the error message.
    • Michael Renardy
      Michael Renardy almost 7 years
      I have been getting similar messages when I update MiKTeX. It always works eventually if I just keep trying again.
    • cfr
      cfr almost 7 years
      Probably a most naïve question, but can you increase the number of open files permitted by the OS? Not a good idea if it is a misleading message as @MaestroGlanz says, of course.
    • fajar
      fajar almost 7 years
      Thanks everyone! I switched to TeXLive the next day, and it works just as good.
    • Ulrike Fischer
      Ulrike Fischer almost 7 years
      A bug ticket has been opened by Christian Schenk. So he is aware of the problem and working on it: sourceforge.net/p/miktex/bugs/2509