1.    10 Apr 2017 #1
    Join Date : Apr 2017
    Posts : 8,865
    windows 10 professional version 1607 build 14393.969 64 bit

    win 10 version 1607 to 1703 upgrade failure code 0xc1900200

    On one of my computers the windows update displayed an option for an early windows update.

    This update failed with error code 0xc1900200.

    The size of the partition is 100 MB.

    One computer that has already been upgraded has a post upgrade partition size of 100 MB. It was a windows 10 iso clean install of 1607 followed by a Microsoft upgrade assistant upgrade.

    Apparently 100 MB does not equal 100 MB if the drive manufacturers are different????

    These are the links that I have come across so far in looking for a solution so far.

    Solving the free space problem on microsoft system reserved - Microsoft Community


    How to Upgrade to Windows 10 Creators Update version 1703 or Earlier - Microsoft Community

    HP Products Tested with Windows 10 | HP® Customer Support

    Check this List to Determine if Your Computer is Compatible with the - Microsoft Community

    Windows 10 System Requirements Specifications | Microsoft

    Resolve Windows 10 upgrade errors - Windows IT Pro

    Free download Magic Partition Manager Software, partition magic alternative, free partition magic, partition magic Windows 7 and server partition software - Partition Wizard Online

    1) Has anyone encountered this update error 0xc1900200 from 1607 to 1703?

    2) Short of clean install what method have you used to update?

    3) What other options are there to upgrade if your files are not yet backed up?
      My ComputerSystem Spec
  2.    10 Apr 2017 #2
    Join Date : Apr 2017
    Posts : 8,865
    windows 10 professional version 1607 build 14393.969 64 bit
    Thread Starter

    These are some others that I just found looking for a solution without clean install and without risking files:

    Fix: Windows 10 upgrade couldn Buck Hodges

    Errort update the system reserved partition - Microsoft Community

    Again i don't know whether these are applicable or not applicable to this upgrade error 0xc1900800 as that is an all inclusive type error.
      My ComputerSystem Spec
  3.    10 Apr 2017 #3

    If you're having issues with upgrading to the latest version, 1703 is now available on Media Creation Tool so you could do a clean install via USB stick.
      My ComputersSystem Spec
  4.    12 Apr 2017 #4
    Join Date : Apr 2017
    Posts : 8,865
    windows 10 professional version 1607 build 14393.969 64 bit
    Thread Starter

    In this link I did not find any information on safety or risk to files:
    Errort update the system reserved partition - Microsoft Community

    It has been confirmed that the recovery partition is of insufficient size for the windows 1607 to 1703 upgrade.

    2017-04-06 05:03:00, Info CONX CFreeSystemPartitionDiskSpaceChecker: checked InsufficientSystemPartitionDiskSpace, found HardBlock.Not enough space on partition [\\?\GLOBALROOT\Device\HarddiskVolume2\] Required: 15 MB. Available: 6 MB.

    Diskpart can be used to expand this partition.........harddisk volume 2.

    The files are not backed up.

    Can diskpart be used without placing the files at risk?

    If not what other software can be used that keeps the existing files safe on the same drive?
      My ComputerSystem Spec


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