Advice about partitioning my MBR SSD

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  1. Posts : 33
    10 Pro 20H2,19042.746
       #1

    Advice about partitioning my MBR SSD


    Hello,
    I've read the Basic and Dynamic notes from MS here
    https://docs.microsoft.com/en-gb/win...DN#basic_disks and this is what I'd like to achieve - I think.
    Screenshot of MS MBR layout
    Advice about partitioning my MBR SSD-mbr-layout.jpg

    But I've made a mistake in my installing win10 to a brand new SSD, in that I don't have enough partitions to do my stuff. I didn't realise that installing win10 creates 3 partitions, and with the remaining one I am allowed I used disk management to partition C:\ and have moved all user profiles and other data, and now I've got nothing left to create some standalone data storage silos. See my disk management screenshot below. From the colours my E:\ is an extended partition and a logical drive. My disk is MBR.
    Advice about partitioning my MBR SSD-my-ssd.jpg

    Possible question is a logical drive a separate drive space from other logical drives on the same partition, the same as a partition is separate from other partitions. If it is then I'd like to have drives G:\ H:\......n
    Thanks, Stuart
      My Computer


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

    Are you committed to MBR?
      My Computer


  3. Posts : 4,166
    Windows 11 Pro, 22H2
       #3

    The fact that you are using MBR indicates that you are on an older BIOS based system, is that correct?

    If your system is UEFI based you would really want GPT partitioning rather than MBR. One of the benefits of this is that it would remove the 4 primary partition limit.

    That said, with MBR partitioning, you are correct: You can take your primary partition which currently contains one logical partition and divide it into multiple logical partitions.

    Personally, I'm not a big fan of creating so many partitions because it limits your flexibility. For example, let's say that you create a logical partition of 50GB and assign the drive letter E: to it. One day in the future, you find that the 50GB is not enough. However, there is actually lots of free space available on the disk but it's locked up in other logical partitions. Now you are stuck in a position where you don't have enough space in at least one of your partitions although you may still have plenty of space elsewhere on the same drive.

    If your goal really is to create additional logical partitions, you certainly can do so by shrinking the current partition which is currently drive letter E:. Once shrunk, the free space can be carved up into one or more additional logical partitions.
      My Computers


  4. Posts : 14,160
    Win10 Pro and Home, Win11 Pro and Home, Win7, Linux Mint
       #4

    Guess I'm missing it but don't see any mention of an Extended partition which can hold several logical drives.
      My Computers


  5. Posts : 33
    10 Pro 20H2,19042.746
    Thread Starter
       #5

    ignatzatsonic said:
    Are you committed to MBR?
    Thank you, no I'm not, its just that I've only ever used MBR my whole life and then having read the GPT documents from MS I found they were beyond my ability to correctly configure (too much knowledge gap for me to span), especially when MS mentioned looking at what a Institute of Electrical and Electronics Engineers (IEEE) 1394 and clustered disk was, I just figured it was MBR for me as I was familiar with this. Cheers, Stuart
      My Computer


  6. Posts : 41,653
    windows 10 professional version 1607 build 14393.969 64 bit
       #6

    Please open the BIOS menu > take a picture with a smartphone camera > upload a picture into the thread

    Indicate whether there are or are not options for
    UEFI hybrid (with CSM)
    UEFI native (without CSM)

    With UEFI you can create 128 partitions:

    https://docs.microsoft.com/en-us/win...ive-partitions


    If you stuck with Legacy then:

    https://docs.microsoft.com/en-us/win...ive-partitions
    https://docs.microsoft.com/en-us/win...ased-hard-disk
      My Computer


  7. Posts : 33
    10 Pro 20H2,19042.746
    Thread Starter
       #7

    hsehestedt said:
    The fact that you are using MBR indicates that you are on an older BIOS based system, is that correct?
    Apparently not... my BIOS, I've just looked at the boot menu has a radio button Legacy Boot (which is what it is selected and was on this when I bought the PC), and another that says UEFI. The BIOS can also go into some system status menu with pictures and at the bottom it says UEFI Boot Management. I just escaped this and went to boot normally


    hsehestedt said:
    If your goal really is to create additional logical partitions, you certainly can do so by shrinking the current partition which is currently drive letter E:. Once shrunk, the free space can be carved up into one or more additional logical partitions.
    Do you mean to say that all I have to do is to shrink my E:\ to something smaller and then disk manager will provide me the right click option to add logical volumes--what a dumbo I am, thanks for pointing it out
    Thanks Stuart

    - - - Updated - - -

    zbook said:
    Please open the BIOS menu > take a picture with a smartphone camera > upload a picture into the thread

    Indicate whether there are or are not options for
    UEFI hybrid (with CSM)
    UEFI native (without CSM)

    With UEFI you can create 128 partitions:

    https://docs.microsoft.com/en-us/win...ive-partitions
    OK I will but hopefully you wont be saying I have to do a clean install to get this UEFI GPT thing disk setup. I'm just going to logout and do the pic for you be a few minutes. Stuart
      My Computer


  8. Posts : 41,653
    windows 10 professional version 1607 build 14393.969 64 bit
       #8

    If you choose to use the more modern option then you may look at MBR2GPT with or without data loss:

    Convert Windows 10 from Legacy BIOS to UEFI without Data Loss
    Convert MBR Disk to GPT Disk in Windows 10



    First make a free backup image:


    Macrium Software | It's our Business to protect your data
    Backup and Restore with Macrium Reflect
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  9. Posts : 33
    10 Pro 20H2,19042.746
    Thread Starter
       #9

    zbook said:
    Please open the BIOS menu > take a picture with a smartphone camera > upload a picture into the thread

    Indicate whether there are or are not options for
    UEFI hybrid (with CSM)
    UEFI native (without CSM)
    Advice about partitioning my MBR SSD-my-bios.jpg

    Hi zbook, Here is my BIOS splash, I'm not sure I know what the with/without CSM is, where would that be in the BIOS ?
    I'm just going to look at those links you gave, Stuart
      My Computer


  10. Posts : 41,653
    windows 10 professional version 1607 build 14393.969 64 bit
       #10

    Under Boot List Option there were two options:
    Legacy
    UEFI

    Each computer model may have different BIOS options.

    If you select UEFI does it create new menu options or do they remain the same?
      My Computer


 

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