1.    06 Jun 2017 #1
    Join Date : Sep 2016
    Posts : 4
    Win 10 Home

    Windows Installer Packages not opening on Windows 10

    Messages showing up when trying to install files that is an msi file:

    This installation package could not be opened. Verify that the package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows installer package.

    I am trying to install 8Gadgetpacksetup.msi at this time. I have run this package thru several updates on the Windows system. I could not reset after some updates. Followed instructions to uninstall and then reinstall. Now the file will not open to reinstall. I have noticed that several msi files over the last few months have had the same issue, with no fix found.

    I have tried all of these fixes:
    sfc/ scannow - nothing found wrong
    changed value in registry to 1
    un-registered / registered installer
    tried running file through administrator command prompt.

    tried starting manually in services (this is the only command available other that stop)
    I may have tried a few more that I have forgotten, but basically I am at a stopping point, Is there anything else to do or should I continue to forgo the files I want to download that are msi?

    I am on an HP Touch-smart 15" Laptop.

    Any help would be appreciated.
      My ComputerSystem Spec
  2.    07 Jun 2017 #2
    Join Date : Jan 2015
    UK, Midlands
    Posts : 10,928
    Win 10 Pro (1703)

    Hi, from the extensive and professional quality Tutorial section, you could try
    Restore Default File Type Associations in Windows 10 Windows 10 Customization Tutorials
    to reset the msi file type association.

    Find msi in that, then follow the instructions at the top of that section, Option 2.
      My ComputerSystem Spec
  3.    13 Jul 2017 #3
    Join Date : Sep 2016
    Posts : 4
    Win 10 Home
    Thread Starter

    dalchina, - thank you for the link! followed instructions and it did not work. This was a good thought and i haven't seen it in a fix. I have been trying on and off to fix this msi issue. Nothing has worked yet. MS is of no use for support. Thanks for your answer.
      My ComputerSystem Spec
  4.    14 Jul 2017 #4
    Join Date : Jan 2015
    UK, Midlands
    Posts : 10,928
    Win 10 Pro (1703)

    Hi, just tried the msi from here:
    8GadgetPack Download
    - worked on my PC (1607 build - see my specs).
    However I note you say other msi's fail to install.

    Presumably you successfully merged the reg file from the tutorial.

    You could try this, but I somehow doubt it's the answer.
    How to Force an MSI Package to Install Using Administrator Mode

    Is yours an admin account?

    What happens when you double click the msi file- do you get an error message?

    Try Tweaking.com's free cautious repair tool, observing the cautious stages. Select only repair 21.
    I would recommend that as a straightforward approach.

    Beyond that there are good details here:
    Windows Installer Corrupted

    including how to reregister msiexec.

    Also here- but older (I presume still valid)
    How to register and reinstall Windows Installer? | Whatever!

    (Note: you can add the ability to install things in Safe Mode).
      My ComputerSystem Spec


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