Windows 10: Tried upgrading to Windows 10, laptop crashed at 25% has no OS.

  1.    15 Dec 2015 #1

    Tried upgrading to Windows 10, laptop crashed at 25% has no OS.

    I encountered this issue recently, and it's caused me a fair bit of frustration. I keep searching for solutions but it seems nobody has any. Does anyone know what I can do to restore Windows 7 (preferably with my files intact) or at the very least finish the upgrade to Windows 10? Any and all help is greatly appreciated.
      My ComputerSystem Spec

  2.    15 Dec 2015 #2

    Install Macrium Reflect Free on an operating computer. Make a Macrium Reflect Free rescue USB/DVD/CD. Boot the troubled laptop from the rescue USB/DVD/CD. See if Macrium Reflect detects partitions. If you have an external drive with enough space you can save an image of the Windows partition (if Reflect finds partitions). Under the restore menu of Macrium Reflect Free you can also attempt to restore booting with the fix startup problems utility.

    If you save an image of the Windows partition, you can use Macrium Reflect Free to explore the image and retrieve specific files/folders from it.
      My ComputerSystem Spec

  3. Ztruker's Avatar
    Posts : 6,393
    Windows 10 Pro X64 17134.191
       15 Dec 2015 #3

    It's possible the Windows 10 install created a C:\Windows.old folder when the upgrade started. If so you may be able to roll back to Windows 7 from a booted installation DVD or flash drive.

    How did you do the upgrade?

    From Windows Update,
    via Media Creation Tool - Update now
    DVD or flash drive created by Meadia Creation Tool
    Download ISO from Techbench

    Do you currently have a Windows 10 installation DVD or flash drive?
    If not, create one, see here: Windows 10 ISO Download

    Then follow thses directions: Windows 10 - Go Back to Previous Windows tutorial.

    No guarantee but it might work, worth a try.

    Go back to Previous Windows from Windows 10 in Advanced Startup options

    Use Option Five: Boot to Advanced Startup Options from Windows 10 Installation USB or DVD in the
    Advanced Startup Options - Boot to in Windows 10
      My ComputersSystem Spec


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