Can't Boot Into default Windows Partition

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  1. Matthew Wai
    Posts : 7,606
    Windows 10 Home 20H2
       New #71

    Brentg said:
    I apparently killed the other screens that showed the number of runs
    If I recall correctly, the default number is 4.
    If not, the experts will correct me.
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  3. zbook
    Posts : 41,455
    windows 10 professional version 1607 build 14393.969 64 bit
       New #72

    Please see instructions in post #60.
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  4. Brentg
    Posts : 86
    Windows 10
    Thread Starter
       New #73

    Matthew Wai said:
    If I recall correctly, the default number is 4.
    If not, the experts will correct me.
    Ok, that's informative. Thanks

    - - - Updated - - -

    zbook said:
    Please see instructions in post #60.
    Thanks's zbook. I've been tied up with trying to fix my pickup truck I bounced into a culvert during last month's snowstorm. I am wondering if there is some kind of program I can use to manipulate that boot sector on the partition that will not boot.
    I was looking at Bootice, but I don't want to pull the trigger on something I don't know anything about.
    My situation is such that I can't even install a fresh windows10 on the partition since it won't boot normally without the blue screen telling me to select another partition and a Win10 install has to reboot several times.
    Do you think I could use partition magic or some utility to merge that partition without taking down the entire drive?
    Last edited by Brentg; 08 Apr 2021 at 18:04.
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  6. Matthew Wai
    Posts : 7,606
    Windows 10 Home 20H2
       New #74

    Brentg said:
    I can't even install a fresh windows10 on the partition since it won't boot normally
    Can you boot the PC from a Windows USB device? If so, you can clean install Windows 10.

    Brentg said:
    Do you think I could use partition magic or some utility to merge that partition without taking down the entire drive?
    DiskPart is a Windows built-in utility. You can delete all OS partitions without touching the data partition. I did so before clean installing Windows 10.
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  7. zbook
    Posts : 41,455
    windows 10 professional version 1607 build 14393.969 64 bit
       New #75

    These you can perform at any pace:

    Reset Windows 10
    Custom Install Windows 10
    How to Restore Files from Windows.old Folder in Windows 10
    Clean Install Windows 10
    Refresh Windows 10
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  8. Brentg
    Posts : 86
    Windows 10
    Thread Starter
       New #76

    Matthew Wai said:
    Can you boot the PC from a Windows USB device? If so, you can clean install Windows 10.

    DiskPart is a Windows built-in utility. You can delete all OS partitions without touching the data partition. I did so before clean installing Windows 10.
    Yes, I can boot from a Windows USB device and have tried installing Win10 Pro that way. But when the computer starts it's multiple reboots at some point it fails.
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  9. Matthew Wai
    Posts : 7,606
    Windows 10 Home 20H2
       New #77

    Did you delete the OS partitions? If so, which ones below did you delete?

    Brentg said:
    Partition ### Type Size Offset
    ------------- ---------------- ------- -------
    Partition 1 System 100 MB 1024 KB
    Partition 2 Reserved 16 MB 101 MB
    Partition 3 Primary 393 GB 117 MB
    Partition 4 Recovery 538 MB 393 GB
    Partition 5 Primary 390 GB 393 GB
    Partition 6 Recovery 1024 MB 930 GB
    Assuming partition 5 is a data partition, you can delete all others, which will become a single unallocated space as shown below:



    Select the unallocated space and click on Next

    The data partition should not be the cause of the following:
    Brentg said:
    when the computer starts it's multiple reboots at some point it fails.
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  10. Brentg
    Posts : 86
    Windows 10
    Thread Starter
       New #78

    Matthew Wai said:
    Did you delete the OS partitions? If so, which ones below did you delete?


    Assuming partition 5 is a data partition, you can delete all others, which will become a single unallocated space as shown below:



    Select the unallocated space and click on Next

    The data partition should not be the cause of the following:
    Thanks, Matthew, this looks like an important 1st step if I decide that the partition I created to migrate my date from my working partition cannot be salvaged. Can I just do this from the boot USB? I have the free version of Mini Tool Partition Wizard also and Macrium Reflect.
    Last edited by Brentg; 09 Apr 2021 at 05:29.
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  12. Matthew Wai
    Posts : 7,606
    Windows 10 Home 20H2
       New #79

    You don't need a third-party tool to delete partitions. Just boot the PC from the Windows USB device.
    When you see the following screen, delete all OS partitions. Note that all data on the partitions will be deleted too.



    Source: Fresh Install Windows 10 - Recovery Partition
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  13. Brentg
    Posts : 86
    Windows 10
    Thread Starter
       New #80

    Matthew Wai said:
    You don't need a third-party tool to delete partitions. Just boot the PC from the Windows USB device.
    When you see the following screen, delete all OS partitions. Note that all data on the partitions will be deleted too.



    Source: Fresh Install Windows 10 - Recovery Partition
    Thanks, Matthew

    - - - Updated - - -

    Matthew Wai said:
    You don't need a third-party tool to delete partitions. Just boot the PC from the Windows USB device.
    When you see the following screen, delete all OS partitions. Note that all data on the partitions will be deleted too.



    Source: Fresh Install Windows 10 - Recovery Partition
    Matthew, would you take a look at my partitions and tell me what I need to delete to leave just the C: drive, which I am currently using? I want to recover the full capacity of the disk and repartition it and start over with a new installation of Windows10 Pro on the new partition. I assume I can do all this in disk management.

    https://mega.nz/file/D8FggbqD#Ewpmer...e8ccqnjgtN7vqM

    Thanks
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