reinstalled win10 on new drive & cant see system reserved partion.

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  1. Posts : 91
    win 10 pro
       #1

    reinstalled win10 on new drive & cant see system reserved partion.


    Background.
    My old HD (disk 0) is looking faulty so I installed a new drive (disk 1) and did fresh win10 install. I left Disk 0 in PC to test/reformat etc.

    I now want to partition new C: drive so I have a separate smaller boot partition for cloning/ win reinstall but am puzzled to find that there is no system reserve partition showing in disk management? I've just read on help sites that it should be there. Is it possible it installed to disk 0 instead?

    Should i start again and repartition properly and reinstall win10. Its no problem to me as have little programs and data is all backed.
    I have to say i don't recall win10 install giving me an option to do that when i installed 2 days ago (old windows versions usually did)
    OR can I partition C as it currently is if i find some clever software? (have added s.shot)

    thanking folks in advance!reinstalled win10 on new drive & cant see system reserved partion.-no-sys-res.png
    Last edited by Tanya; 06 Oct 2019 at 07:05.
      My Computer


  2. Posts : 920
    Windows 10 Pro
       #2

    I would remove all physical drives from the PC, disconnect their power/data leads, then install Windows to the new drive, do not make any partitions first, Windows will create all needed partitions. Once Windows is installed and you reach the desktop you can either shrink the Windows partition and allocate spare space as new partition or use a 3rd party app to do that. There are a few free apps for partitioning recommended on this forum.
      My Computer


  3. Posts : 2,487
    Windows 10 Home, 64-bit
       #3

    If you are UEFI booting on a GPT disk, I don't think you will see a "system reserved" partition on Win 10.

    I don't have one.

    reinstalled win10 on new drive & cant see system reserved partion.-image.png
      My Computer


  4. Posts : 920
    Windows 10 Pro
       #4

    Disk part shows it.
    reinstalled win10 on new drive & cant see system reserved partion.-untitled.png
      My Computer


  5. Posts : 12,485
    Win10 Version 21H2 Pro and Home, Win11 Pro
       #5

    Pejole2165 said:
    I would remove all physical drives from the PC, disconnect their power/data leads, then install Windows to the new drive, do not make any partitions first, Windows will create all needed partitions. Once Windows is installed and you reach the desktop you can either shrink the Windows partition and allocate spare space as new partition or use a 3rd party app to do that. There are a few free apps for partitioning recommended on this forum.
    Agree, that is becoming one of the more common situations/themes with clean installs/drive changes. I even got caught with it a few weeks ago on an older computer with a RAID/AHCI setting in the BIOS that Windows decided to use the RAID since there were 2 drives attached. Later removal of the D: drive broke the booting process, solution was to remove what should have been the D: drive and clean install again.
      My Computers


  6. Posts : 25,076
    10 Home x64 (21H2) (10 Pro on 2nd pc)
       #6

    Pejole2165 said:
    Disk part shows it.
    You're looking at the 16MB MSR partition which every GPT drive will have, but which is never shown in Disk Management. The MSR is NOT used by the system for booting, or for any other purpose. It is purely there for backward compatibility with MBR disks. It can be seen in MiniTools Partition Wizard.

    reinstalled win10 on new drive & cant see system reserved partion.-gpt-msr-minitools-vs-disk-management.png

    Formerly, on disks formatted using the older MBR partition layout, certain software components used hidden sectors of the disk for data storage purposes. One example of this is the Logical Disk Manager (LDM), which, should the disk be converted from a basic disk to a dynamic disk, would store metadata in a 1 MB area at the end of the disk which was not allocated to any partition.

    GPT formatted disks and the UEFI partition specification do not allow hidden sectors. Microsoft reserves a chunk of disk space using this MSR partition type, to provide an alternative data storage space for such software components...
    Microsoft Reserved Partition - Wikipedia
      My Computers


  7. Posts : 91
    win 10 pro
    Thread Starter
       #7

    Please help I have messed everything up.

    i decided to reinstall win 10 and removed my possibly faulty old drive entirely from my machine as i assumed it had confused my previous install.
    when i started new win10 install i somehow i ended up with screen below.
    reinstalled win10 on new drive & cant see system reserved partion.-fred.jpg
    I started googling the problem and read online to use diskpart to fix but that wouldn't recognise C: drive. it calls it X: and if I list volumes It only recognises my cd drive.

    I've now found a thread online that says HP machines have this problem and wont recognise SSD drives properly.
    the person had same problem as me.

    I'm tempted to put the faulty old drive back and allow windows to continue as it was....it i havent completely wrecked things..

    - - - Updated - - -

    ignatzatsonic said:
    If you are UEFI booting on a GPT disk, I don't think you will see a "system reserved" partition on Win 10.

    I don't have one.

    reinstalled win10 on new drive & cant see system reserved partion.-image.png
    Hi- but if you look at my screen shot above- my C: drive had NO extra partitions. it's all one big chunk. Your boot drive has several....(confused).
    Not that it matters so much now as getting back on windows is my priority now.
      My Computer


  8. Posts : 17,369
    Windows 11 Pro
       #8

    @Tanya,

    When you are at the screen above with Drive 0 and 2 partitions listed, do the following:
    Press Shift + F10 to open a command prompt Window (note: you might have to press Shift + Fn + F10). Run the following commands:
    diskpart
    select disk 0
    clean
    exit
    exit

    Then in that same window with the drives and partitions, click refresh. Highlight the unallocated space that will show up and click next.

    The error message you are getting is because the entire drive is filled with partitions and it cannot create an EFI System Partition. The clean command will delete the existing partitions, so then there will be free space on the drive in which to create the EFI System partition (along with all the other required partitions).
      My Computer


  9. Posts : 91
    win 10 pro
    Thread Starter
       #9

    NavyLCDR said:
    @Tanya,

    When you are at the screen above with Drive 0 and 2 partitions listed, do the following:
    Press Shift + F10 to open a command prompt Window (note: you might have to press Shift + Fn + F10). Run the following commands:
    diskpart
    select disk 0
    clean
    exit
    exit

    Then in that same window with the drives and partitions, click refresh. Highlight the unallocated space that will show up and click next.

    The error message you are getting is because the entire drive is filled with partitions and it cannot create an EFI System Partition. The clean command will delete the existing partitions, so then there will be free space on the drive in which to create the EFI System partition (along with all the other required partitions).
    Hi- will try that now.
    ty
    I have also switched the cables correctly inside the PC as i read there was a colour coding system for cables/motherboard

    - - - Updated - - -

    oh my gosh my motherboard cable switched fixed it! when i tried again there was only one partition and no error message.
    windows now installing!!

    ( checked on HP forum and seems like older desktops done recognise faster SATA unless plugged into the main dark blue port). Windows is now loading (so relieved- thanks everyone!)
    Last edited by Tanya; 06 Oct 2019 at 10:49. Reason: more info
      My Computer


  10. Posts : 17,369
    Windows 11 Pro
       #10

    What was the result?
      My Computer


 

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