How repair "No Boot Device Found" during boot

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  1. Posts : 6,856
    Windows 11 Pro - Windows 7 HP - Lubuntu
       #21

    All you have to do is to set disk 0 as your first boot option.
    D: isn't set as active (as it should be).
    How repair "No Boot Device Found" during boot-dm.jpg


    To attach an DM image (or any other image) follow the tutorial
    How to Upload and Post Screenshots and Files at Ten Forums
    How to Post a Screenshot of Disk Management
    If you have a MiniTool or AOMEI Partition use it instead or Windows disk manager.

    You have two recovery partitions. To find out witch one is in use, open a CMD window as administrator and type:
    Reagentc /info

    Why do you have a drive letter assigned to the System Reserved partition?
    Last edited by Megahertz; 19 Jun 2023 at 08:31.
      My Computers


  2. Posts : 1,058
    Windows 10 Pro
    Thread Starter
       #22

    I don't know why I have a drive letter for the System Reserved partition. How do I remove it?
    Please describe my two recovery partitions. I don't think this is normal? If not, how do I fix it?

    Thank you.....
      My Computer


  3. Posts : 6,856
    Windows 11 Pro - Windows 7 HP - Lubuntu
       #23

    The drive letter for the System Reserved partition can be removed under Disk manager (C:\Windows\System32\diskmgmt.msc). Right click on the System Reserved partition, and select change drive letter. Choose none.

    Windows can create a bigger Recovery partition and the last remains useless.
    To find out witch one is in use, open a CMD window as administrator and type:
    Reagentc /info
      My Computers


  4. Posts : 1,058
    Windows 10 Pro
    Thread Starter
       #24

    Megahertz said:
    The drive letter for the System Reserved partition can be removed under Disk manager (C:\Windows\System32\diskmgmt.msc). Right click on the System Reserved partition, and select change drive letter. Choose none.

    Windows can create a bigger Recovery partition and the last remains useless.
    To find out witch one is in use, open a CMD window as administrator and type:
    Reagentc /info
    Probably a dumb question but - do I delete the one that is NOT in use? I'm asking because I don't know what a Recovery Partition is and how is it used. Thank you......
      My Computer


  5. Posts : 5,001
    Windows 11 Pro 64 Bit 22H2
       #25

    The Recovery Partition is created when there is a Major Upgrade to Windows
    If the Upgrade doesn't go well, you can revert back to the previous Windows version with information in this partition.
    It is also used if you have issues booting your computer to help troubleshoot. Both of these scenarios are accessed through the Troubleshooting menu.
    Most Recovery Partitions are just a few hundred MB's so less then 1GB and you will hardly gain any space back if you delete it. So, it's best if you just leave it alone, it shouldn't affect you one way or the other.
      My Computer


  6. Posts : 6,856
    Windows 11 Pro - Windows 7 HP - Lubuntu
       #26

    Nisko said:
    Probably a dumb question but - do I delete the one that is NOT in use? I'm asking because I don't know what a Recovery Partition is and how is it used. Thank you......
    The recovery environment has a WinPE so you can do some maintenance and fixes if you're unable to boot.

    Normally the recovery partition is on the right side of the C: partition.
    Instead of just deleting the old recovery partition you can delete and merge the space to the active recovery partition.
    Did you run Reagentc /info?
      My Computers


  7. Posts : 1,058
    Windows 10 Pro
    Thread Starter
       #27

    spunk said:
    The Recovery Partition is created when there is a Major Upgrade to Windows
    If the Upgrade doesn't go well, you can revert back to the previous Windows version with information in this partition.
    It is also used if you have issues booting your computer to help troubleshoot. Both of these scenarios are accessed through the Troubleshooting menu.
    Most Recovery Partitions are just a few hundred MB's so less then 1GB and you will hardly gain any space back if you delete it. So, it's best if you just leave it alone, it shouldn't affect you one way or the other.
    Thanks for the explanation and advice.

    - - - Updated - - -

    Megahertz said:
    The recovery environment has a WinPE so you can do some maintenance and fixes if you're unable to boot.

    Normally the recovery partition is on the right side of the C: partition.
    Instead of just deleting the old recovery partition you can delete and merge the space to the active recovery partition.
    Did you run Reagentc /info?
    Haven't run it yet - haven't been well. Hope to run it soon.Thanks.
      My Computer


  8. Posts : 5,001
    Windows 11 Pro 64 Bit 22H2
       #28

    Or you can leave both very small Recovery Partitions alone, they don't take up much space and won't affect you one way or the other
      My Computer


  9. Posts : 1,058
    Windows 10 Pro
    Thread Starter
       #29

    Nisko said:
    Thanks for the explanation and advice.

    - - - Updated - - -

    Seem to be having difficulty sending this file to you. It was supposed to be inserted inline.


    Haven't run it yet - haven't been well. Hope to run it soon.Thanks.
    I just ran it and received no results. Do I have to run it as an administrator? I right clicked the bottom left "window" and clicked on run. Then I inserted the command and ran it. Help?

    - - - Updated - - -

    Nisko said:
    Thanks for the explanation and advice.

    - - - Updated - - -



    Haven't run it yet - haven't been well. Hope to run it soon.Thanks.
    Reagent.pdf

    This is the result I received by running it with an elevated command prompt. Don't understand any of it. Help!!!
    [/I]

    - - - Updated - - -

    Nisko said:
    I just ran it and received no results. Do I have to run it as an administrator? I right clicked the bottom left "window" and clicked on run. Then I inserted the command and ran it. Help?

    - - - Updated - - -

    Reagent.pdf

    This is the result I received by running it with an elevated command prompt. Don't understand any of it. Help!!!
    [/I]
    Reagent.pdf

    - - - Updated - - -

    spunk said:
    Or you can leave both very small Recovery Partitions alone, they don't take up much space and won't affect you one way or the other
    I hate to have junk on my PC whether or not it's null. How do I identify which one is not used and merge the space together with the other system reserved after I delete the contents of the unused file? Thank you.
      My Computer


  10. Posts : 6,856
    Windows 11 Pro - Windows 7 HP - Lubuntu
       #30

    Your recovery is disabled.

    If you want to enable, open a CMD window as administrator and type:
    Reagentc /enable

    then to find witch one is in use
    Reagentc /info

    This is how you should post an image on the forum
    How to Upload and Post Screenshots and Files at Ten Forums
      My Computers


 

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