Windows 10: 0xC1900101 - 0x2000A - Error Solved

  1.    29 Jul 2015 #1

    0xC1900101 - 0x2000A - Error


    "The Installation failed in the SAFE_OS phase with an error during PREPARE_FIRST_BOOT operation"

    Hi, Above is my error with my windows 10 upgrade.

    It downloads and then starts copying the files on the black screen with the big % sign, but then it fails and restores my previous version of windows.

    I have tried to upgrade like 5 times and now I am tired. I have used the "windows 10" link and the media creator and the windows update tool. same process same error. I have looed about all the forums and no-one seems to have this problem........... please help me.

    Thanks


    This seemed to be because my OS was prompting me to choose between Win7 and Win 8.1 on start-up. In my program files i had a Windows.old folder (from my old 7 to 8 upgrade). This i renamed as Aaaaa and then i turned off the boot OS selection restore option. After rescanning updates it downloaded fine and is now working without problems.
    Last edited by Matthew; 29 Jul 2015 at 18:41. Reason: Solved
      My ComputerSystem Spec


 

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