Windows 8 and 8.1 Forums

Windows 8 Pro won't install from dvd Error Dx8007045a

  1. #1

    Posts : 1
    Windows 7 Home Premium 64 bit

    Windows 8 Pro won't install from dvd Error Dx8007045a

    Running Windows 7 Home Premium and trying to install Windows 8 Pro from purchased DVD.
    Opted to install updates online as suggested by Setup the chose upgrade keeping files and applications (not a clean install).
    No matter what I do it fails every time after PC check with:

    Windows encountered an unexpected error.
    Verify that the installation sources are accessible and restart the installation.

    Followed by:
    Setup is unable to launch Install.exe
    A dynamic link library (DLL) initialization routine failed.
    [Error Dx8007045a].

    I've spent an afternoon going around in circles - please help!
    Attached Thumbnails Attached Thumbnails Windows 8 Setup sources error.JPG   Windows 8 Setup unable to launch Install_dot_exe.JPG  

      My System SpecsSystem Spec

  2. #2

    Posts : 5,592
    ME, XP,Vista,Win7,Win8,Win8.1

    Welcome to EightForums.

    Quote Originally Posted by Stewie56
    Opted to install updates online as suggested by Setup the chose upgrade keeping files and applications (not a clean install).
    1) Try with no updates.

    2) Try a clean install:
    Clean Install with Windows 8 Upgrade
      My System SpecsSystem Spec

  3. #3

    Posts : 65
    Windows 7 Ultimate 32bit

    Probable causes: 1. Your install DVD is damaged and cannot be read.
    2. Your optical drive is faulty and cannot read the DVD properly.

    Solutions: Install from a pendrive.Try to create a bootable pendrive with WINToBootic from another computer - that way problem #2 is taken care of. WINTOBootic will straight away take your DVD - no need to create an ISO.

    WiNToBootic - the ultimate Windows 7/8 USB Boot Disk Maker

    In any case avoid a clean install if you want to keep files and applications.
      My System SpecsSystem Spec

Windows 8 Pro won't install from dvd Error Dx8007045a

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