Windows 10: Error 1721 Windows 10

Discus and support Error 1721 Windows 10 in Windows 10 Installation and Upgrade to solve the problem; When my Adobe Acrobat Reader tries to update, the error message 1721 keeps coming up. The windows installer is in "manual" mode. What can I do to fix... Discussion in 'Windows 10 Installation and Upgrade' started by jab63, Apr 16, 2019.

  1. jab63 Win User

    Error 1721 Windows 10


    When my Adobe Acrobat Reader tries to update, the error message 1721 keeps coming up. The windows installer is in "manual" mode. What can I do to fix this problem?

    :)
     
    jab63, Apr 16, 2019
    #1

  2. Error 1721 in Windows 10. Error 1721: 'There is a problem with this Windows Installer package. A program required for this install to complete could not be run.' during installation/uninstallation

    Hello,

    I have been trying to install "CSI Etabs 2013 software" . but I got this Error (1721) and then when I want to Uninstalling , i got this Error(1721) again.

    I did this steps but didn't work.

    • Hold down the Windows key + R to open the Run box
    • Type MSIEXEC /UNREGISTER and click OK Even if you do this correctly,it may look like nothing happens
    • Type MSIEXEC /REGSERVER and click OK
    • Try the installation once more
    By the way, I don't have problem with Installing last version of softwares. but I always have problem with Installing old version of softwares.

    Best regards.
     
    mojtabafathi, Apr 16, 2019
    #2
  3. teemacs Win User
    Windows 10; HP error 1721

    Nope, Andre, I'm afraid Error 1721 is still very much there. I've got rid of everything on that list on your post except the Protect Tools Device Access Manager, which stubbornly doesn't want to leave me, even though I've informed it on innumerable occasions
    that I want it to move on and bother someone else. It merely says "Error 1721", which I suppose is the computer equivalent of sticking out its tongue.
     
    teemacs, Apr 16, 2019
    #3
  4. DaveM121 Win User

    Error 1721 Windows 10

    Error 1721 occurring using Windows 10

    Hi Norman, error 1721 is an error with the Windows Installer service . . .

    Click your Start Button, type services and Hit Enter

    In the resulting list, find Windows Installer

    Right click that service and choose Properties

    On the resulting dialog, stop that service

    Wait a second or two, hen start that service again

    Close the Services App and try installing/uninstalling that app again
     
    DaveM121, Apr 16, 2019
    #4
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Error 1721 Windows 10

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