1. Joined : Apr 2016
    Posts : 90
    Windows 10 Pro 1511
       10 Sep 2016 #1

    7-Z Newer version

    On my win 10 pc, is installed 7-z program, version 15.14 since OS installation. Reading here and there I found there is a new version 16.02. If I want to update this program, shell I uninstall the previous first, or can I install it over the program ?
    In 7-z help could not find answers.
    Your answers will be appreciated.
      My System SpecsSystem Spec

  2. Joined : Aug 2014
    Forever West
    Posts : 2,544
    Win10 Home and Pro, Win10 Insider Preview, Win7 Home, Linux Mint
       10 Sep 2016 #2

    Is that the file format generally associated with 7-Zip? http://www.7-zip.org/
    Many Windows-based programs will simply install over the top of, or Upgrade, what is already installed. That's good if one has purchased a program and doesn't want to lose registration information but with totally free programs one can either just install the new or Uninstall the old first.
      My System SpecsSystem Spec

  3. Joined : Aug 2015
    Posts : 825
    Win10/64 Pro 1511 (and 2 Win 7/64 Ult & Pro systems)
       10 Sep 2016 #3


    I think you ought to be able to install on top of the existing version.
    But there would be no harm in doing a clean upgrade.
    It's open-source software, so there's no license issue...

    (Either way, it's important to do so soon, as the current version patches several important security vulnerabilities in older versions that were being exploited in the wild.)

      My System SpecsSystem Spec

  4. Joined : Oct 2015
    Posts : 10
    Windows 10
       10 Sep 2016 #4

    just install new version and it will working fine
      My System SpecsSystem Spec

  5. Joined : Oct 2014
    Posts : 1,711
    Windows Home x64
       11 Sep 2016 #5

    Better uninstall, because it depends, if you used exe or msi installer before as well, if you have x86 or x64 version installed.
      My System SpecsSystem Spec

  6. Joined : Aug 2015
    Posts : 199
    Win 10 Pro X64
       11 Sep 2016 #6

    Mostly you can just update without reinstalling but as this was quite a major jump in versions due to the need to patch it you should uninstall first
      My System SpecsSystem Spec

  7. Joined : Oct 2013
    N Calif
    Posts : 658
    W10 Pro (desktop), W10 (laptop), W10 (laptop), W10Pro (tablet)
       11 Sep 2016 #7

    After reading this thread, I checked what version of 7Zip I had installed and found I was using version 9.2! I downloaded the latest version and ran the installer, it installed fine over the top of the older version. I did get a prompt that said I needed to reboot in order for it to be able to replace some files.
      My System SpecsSystem Spec


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