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  1. #1
    Star Lounger
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    Frustrated with Win 10 install

    Have a Sony Vaio F series (Intel i7, 8 GB ram, 64 bit). As purchased, it had Windows 7 Home Premium, 64 bit, installed.
    This was upgraded to Windows 8 Pro. 64 bit.

    Went to Microsoft to upgrade it to Windows 10. Big time mistake!
    It went thru the upgrade process & rebooted to show me Windows 10 for the first time...but the Desktop is continuously flashing & there are a couple of messages that this is due to mfc110u.dll & msvcr110.dll not being installed - say what? Downloaded & burned the iso to a dvd & used it to boot the computer; took a couple of tries before this took hold but it started to install. Few minutes later offered to repair it. Thought this is a better choice - after all, it should only need to replace the missing files, right? Off it went. Said it succeeded: "...all your files are in exactly the same place.". Ok. Starts up again...splash screen & desktop came up flashing again. Some progress, perhaps: only one file missing this time - mfc110u.dll.

    Do I "repair" it again and hope it can finally do it right?
    How can I force a new installation? If I can, when it asks for the Product key would I use the original Windows 7, the Windows 8 or skip that and allow automatic verification later?

  2. #2
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    That dll is part of Visual Studio. It seems like something is in your startup which wants to use it. Can you try a clean boot?
    Joe

  3. #3
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    Use the original W7 key. As you have upgraded it will have been validated and a re-build will authenticate happily.

    cheers, Paul

  4. #4
    Star Lounger
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    Tried another install... Win 7 key "not recognized"

    Think I will do a clean install

  5. #5
    5 Star Lounger
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    The computer had Windows 7 Home Premium, 64 bit, installed.
    It was upgraded to Windows 8 Pro. 64 bit.
    --- I suspect you mean Windows 8.1 Pro

    Since you were upgrading to Windows 10 from "Windows 8 Pro"
    Which Windows 10 did you upgrade to: Home or Pro?

    Since the Windows 7 Home Premium key should be the one that works the issue could be the upgraded Windows 10 version is Pro
    --- If that's the case a product key for Windows 10 Pro needs to be purchased.

  6. #6
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    I'd use the Windows 8 key as it was the last version installed on the machine prior to Win10.
    Joe

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