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  1. axe0's Avatar
    Posts : 14,119
    Windows 10 Pro

    You could try to restore a backup of the registry, as you may already have read backup the current registry first please.

    Are you talking about Microsoft Store apps, installable apps outside the store or both?
    Could you please follow this post in regards to diskpart.
      My ComputersSystem Spec

  2.    #12

    Ok axe0, I backed up the registry hives (to H:\regsave) before overwriting them with the ones I found in …config\regback. As you can see, both that directory and the files were created on Feb 1 at 18:59 (tho I have no idea what provoked that).

    Attachment 179008

    I find it curious that most of the hives I backed up have dates and sizes that indicate recent changes (i.e. since the initial BSOD, and while I have been running tests etc), and SAM has a Dec 2017 date and size that is not reflected in the …config\regback version. Something is going on here that I don’t understand.

    Anyway, no change – I still get BSOD.

    But there is a curious difference that has appeared since I used Macrium Reflect to attempt repair. The first BSOD screen is the same, informing me we “…ran into a problem… we’ll restart for you”. But, instead of offering me the usual recovery partition options after restart, I get a screen headed ‘Recovery’ with the 2 options of either ‘Enter to try again’, or ‘F8 for Startup Settings’. The menu of 9 Settings there lead nowhere, but loop back to the first BSOD screen again. Even option 6 does that, instead of presenting a Safe Mode Command Prompt.

    My only way of now accessing a Command Prompt is to boot from my installation USB and choose ‘Repair > Advanced’. I did that to get you the Diskpart screen below.

    Attachment 179009

    There are no Microsoft Store apps on the PC; I have been referring to installed Applications/Progams my partner uses. Some of those (including e.g. Vipre) update in the background, and could conceivably have caused the problem? No apps were manually updated or installed immediately prior to the BSOD.

    Thanks again for your help. I guess I'm getting close to a destructive Reset or Reinstall....
      My ComputersSystem Spec

  3. axe0's Avatar
    Posts : 14,119
    Windows 10 Pro

    What partitioning scheme is shown when entering 'list disk' in the command prompt?
      My ComputersSystem Spec

  4.    #14

    axe0 there is only 1 HDD - disk 0 under 'list disk', partitioned as listed above. My usb shows as disk1. That's it.
      My ComputersSystem Spec

  5. axe0's Avatar
    Posts : 14,119
    Windows 10 Pro

    Some procedures are different if the partitioning scheme is MBR compared to GPT.

    EDIT: nvm, I think I know it.
      My ComputersSystem Spec

  6. axe0's Avatar
    Posts : 14,119
    Windows 10 Pro

    This may be a silly question to you, but have you tried booting into safe mode?
    Could you run the following command and provide the output
    bcdedit /enum all
      My ComputersSystem Spec

  7.    #17

    So F8 during boot doesn't offer a menu to choose safe mode. And as I noted above, choosing any option (including #6 'Safe Mode Command Prompt') from the menu of 9 Startup Settings which now presents following whatever Macrium Reflect screwed around with, loops back to the "...we ran into a problem" initial BSOD.
    As you can see from the screenshots below, I entered "bcdedit /set {default} bootmenupolicy legacy" to enable the F8 familiar legacy boot options after POST. But choosing '1. Safe Mode' doesn't boot into Safe Mode, but results in the same initial BSOD.
    Attachment 179202
    Perhaps changing to the legacy boot options was what you had in mind anyway?
      My ComputersSystem Spec

  8. axe0's Avatar
    Posts : 14,119
    Windows 10 Pro

    Please remove the assigned letter to the System Reserved partition
    select partition 1
    remove letter=I  <-- uppercase i
      My ComputersSystem Spec

  9.    #19

    So I know it usually presents as X:, but the above screenshot was from when I booted from my install usb, which was allotted d:
    System Restore was given the last one in the sequence - I:
    And after I have removed it, do you want me to replace it with anything? What should I expect will happen after removing its assigned letter? Do you want me to take any follow-up actions? I'm just a bit puzzled axe0, as to what to expect...
      My ComputersSystem Spec

  10. axe0's Avatar
    Posts : 14,119
    Windows 10 Pro

    The System Reserved partition is a partition that shouldn't have any letter, it contains the BCD, Boot Manager Code, Windows Recovery Environment and space for startup files for bitlocker (if available).

    With a little bit of luck, you'll be able to boot again.
      My ComputersSystem Spec

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