Windows 10: Can't Boot Into default Windows Partition

Discus and support Can't Boot Into default Windows Partition in Windows 10 Support to solve the problem; I have not been able to boot into the Windows 10 default partition for some time. I am running Windows 10 Home. Version 20H2, OS Build 19042.746. When... Discussion in 'Windows 10 Support' started by Brentg, Mar 20, 2021.

  1. Brentg Win User

    Can't Boot Into default Windows Partition


    I have not been able to boot into the Windows 10 default partition for some time. I am running Windows 10 Home. Version 20H2, OS Build 19042.746.
    When I attempt to boot normally the windows boot manager comes up and says that windows cannot boot. I have two partitions on my computer and I made the one that I cannot boot into, so I could slowly migrate programs from my old partition to the new one, since I was having many issues with the old partition when Windows Update ran.
    When the Windows Boot Manager comes up, the only way I can get into either partition is to choose the F1 option and "choose another operating system", at which time I can only choose the old partition which is not the default partition.
    My hard drive is set as the default boot device in the bios.
    I have tried to install Windows 10 pro, to no avail, since it has to reboot many times and there is the issue of not being able to boot normally.
    I have tried all the other options offered by the Windows Boot manager, such as "repair startup errors, uninstall updates, choose restore points, command prompt commands such as check disk, repair mbr, rebuild bcd, etc.
    Any suggestions would be appreciated. Thanks!

    :)
     
    Brentg, Mar 20, 2021
    #1
  2. W1zzard Win User

    W7 Hard drive partition issue

    to get rid of that 100 meg windows partition that setup creates for you on a new install on a blank hdd:

    - press shift+f10 when on the partition management screen in setup <-- this opens a command prompt
    - diskpart <-- start the windows command line partition management tool
    - list disk <--- list the installed hdds in this computer for the next step
    - select disk 0 <- might have to replace 0 with the number of the correct disk
    - clean <-- this will erase all data on the disk you selected one step up- dont use the wrong disk!
    - create partition primary <- creates a primary partition taking up all space on the drive, adjust the command if necessary
    - exit, exit to exit diskpart and the command prompt
    - click refresh in partition manager and select your newly created partition and install to that
     
    W1zzard, Mar 20, 2021
    #2
  3. Dandel Win User
    How to go about building a tri-boot system?

    i dual boot all the time, and going in to tri boot is easy.

    step 1) partition the drive in to 3 partitions ( leaving 1 empty for the linux installer. )
    step 2) install windows on the first 2 partitions.
    step 3) install linux, and let it auto partition the remaining space. ( i recommend at least 30gb of space for linux, because it will make things a lot easier. )

    step 4) enjoy.
     
    Dandel, Mar 20, 2021
    #3
  4. Can't Boot Into default Windows Partition

    Boot windows installation within a partition?

    Damnit, I knew thats what you wanted with your first post! I deleted my post because JMCSLOB confused me lol.


    Hm, if you Follow this guide (Replace words "flash driive" with 160GB hard drive) How to Create a Bootable Windows 7 or Vista USB Drive for both partitions and then to do a dummy install of windows 8 on the last part of the HDD it should give you the option to boot Windows 7/8 Installer or boot into windows 8.
    Edit: On step 4 you will want to make sure you size the partition correctly... or you can use the windows gui tool in control panel.


    Once you get that far you can just delete windows 8 from the boot menu using MSCONFIG and delete the partition.
     
    slyfox2151, Mar 20, 2021
    #4
Thema:

Can't Boot Into default Windows Partition

Loading...
  1. Can't Boot Into default Windows Partition - Similar Threads - Can't Boot default

  2. Missing boot partition

    in Windows 10 BSOD Crashes and Debugging
    Missing boot partition: 1. The workstation I use in the university consists of an SSD and a mechanical HDD. Recently the HDD failed and caused the system to not boot into windows 10. I tried installing the HDD on other devices, and subsequently those devices fail to boot as well. 2. However, the...
  3. Boot partition issue

    in Windows 10 BSOD Crashes and Debugging
    Boot partition issue: Background: I was planning to upgrade one of my SATA SSD's that I use for storage to another larger one. When I unplugged that SSD, my PC refused to boot, even though Windows 10 is installed on my NVMe. With my humble knowledge in knowing how a PC boots, I came to the...
  4. Can't boot into Win10 after deleting linux partition

    in Windows 10 Ask Insider
    Can't boot into Win10 after deleting linux partition: Ok so, I screwed up somethings and I am a by no means a pc expert so I need someone with more knowledge about this stuff. It happened when I deleted 2 partitions from my SSD where kali linux was located, which I dual booted with Windows 10. I deleted the partitions from a...
  5. Default Windows 10 Partitions

    in Windows 10 Network and Sharing
    Default Windows 10 Partitions: I was trying to install arch linux via command line, When setting up partitions i accidentally put arch on my windows 10 drive. This meant windows 10 got wiped. Luckily i had a windows 10 install with me, so it didnt matter that much. I just want to make sure all traces of...
  6. Change boot partition

    in Windows 10 Installation and Upgrade
    Change boot partition: I had experimented with Virtual drives but have since turned off that services and expected the C: drive to drop from it's much larger usage back to it's original smaller size but that didn't happen. I found another drive that Windows 10 had created and copied the original...
  7. Can't boot Windows 10 after messing reserved & installation partitions

    in Windows 10 Installation and Upgrade
    Can't boot Windows 10 after messing reserved & installation partitions: I removed Windows 10 x64 (1809)'s 16MB reserved partition located just before the installation partition (which I then resized to be 84MB smaller, with the 84MB unallocated space at the beginning) and increased the SSD's EFI partition, which was located just before the...
  8. Can't boot Windows 10 after messing reserved & installation partitions

    in Windows 10 Support
    Can't boot Windows 10 after messing reserved & installation partitions: I removed Windows 10 x64 (1809)'s 16MB reserved partition located just before the installation partition (which I then resized to be 84MB smaller, with the 84MB unallocated space at the beginning) and increased the SSD's EFI partition, which was located just before the...
  9. Default Partition Reversed on Update

    in Windows 10 Support
    Default Partition Reversed on Update: I've given feedback on Default partitions being reversed, especially by Fast Ring/Skip Ahead: I dual boot between Production and Insider versions of Windows 10. The Production partition is default. Insider partition gets an Update, so the next time I boot, Insider is the...
  10. Can't Expand Windows Partition

    in Windows 10 Drivers and Hardware
    Can't Expand Windows Partition: Hello All, I am just trying to expand my Windows partition but the expand option is greyed out. Any advice on how to be able to expand it into the ~20 GB unallocated space. Thank you. [img] 50175