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Thread: Windows 10 wont boot after deleting windows.old

  1. #1
    MustafaDia is offline New Member
    Join Date
    Apr 2017

    Question Windows 10 wont boot after deleting windows.old

    While I was cleaning my PC using CCleaner, I decided to delete windows.old folder. After cleaning process finished, programs never launch when I open it. I restarted the windows but it won't boot and give STOP CODE error.

    Here is my Laptop Specification:

    Model: Lenovo z570
    CPU: intel i7-2670qm
    GPU: NVIDIA Geforce gt 540m
    RAM: 8GB
    OS: Dual boot Ubuntu(main boot loader) & Windows 10

    And here is the solutions I tried and none of them worked:

    1- Startup Repair (took about 30-45 min and gives error)
    2- Reset This PC (exit at 36% with Undoing Changes message)
    3- Using Command Prompt:

    - chkdsk c: /r /x & sfc /scannow
    - bootrec /fixmbr , bootrec /fixboot , bootrec /scanos , bootrec /rebuildbcd and it outputs: "Total identified windows installation: 0"
    How to solve this problem?

    Thanks in advance.

  2. #2
    Matrix's Avatar
    Matrix is offline Senior Member
    Join Date
    Jul 2009


    The Windows.old folder contains the following folders from your old Windows installation:

    • Windows
    • Documents and Settings
    • Program Files

    It is used only if your want to go back to your previous OS.

    Maybe deleting the Windows/old folder didn't cause the problem. Perhaps its registry cleaner broke something?

    Can you do a System Restore? maybe that will help.

    Anyway, seeing your issue - since you have tried most of the usual solutions - I think only a clean install using a Windows 10 ISO will help.

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