Just done a clean install of W10

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  1. Posts : 170
    Windows 10
       #1

    Just done a clean install of W10


    I have just done a clean install of Windows 10 pro and when I open Macrium reflect i find that my SSD drive, which I use purely for the O/S, has been split into four partitions. Does anyone know why this would be please.

    I would have thought that doing the clean install would have got rid of everything on the disk and then at most, would have created two partitions which I thought was usually the norm.

    Additionally, the Windows 10 email app is not working at all and my google mail isn't very hit and miss.

    I have hopefully attached an image from Macrium Reflect so that you can see what I am talking about.

    Thank you for any help that may be offered.

    Just done a clean install of W10-macrium-screenshot.jpg
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  2. NavyLCDR's Avatar
    Posts : 15,657
    Windows 10 Pro
       #2

    You did not delete all the partitions on the SSD and do the clean install to 100% unallocated space. You did the clean install to an existing partition. Because of that it left the previous recovery partition that you did not delete intact and created a new one as well.
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  3. Posts : 170
    Windows 10
    Thread Starter
       #3

    Thank you NavyLCDR, much appreciated. Are you saying that I should delete ALL partitions on the SSD from the outset? Can I do that and then format the remaining partition in readiness to do the re-install from my flash drive so that the drive is completely clean?
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  4. topgundcp's Avatar
    Posts : 2,782
    Linux Mint 20.1 Win10Prox64
       #4

    Just delete all partitions, leave the whole disk unallocated, do not format then click Next to install. Once done, Windows will create 2 partitions:
    579MB System Reserved ans C drive.
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  5. Berton's Avatar
    Posts : 10,999
    Win10 Pro Versions 2004 and 2009/20H2, Win10 Pro IP_Dev, Win10 Home 1909
       #5

    topgundcp said:
    Just delete all partitions, leave the whole disk unallocated, do not format then click Next to install. Once done, Windows will create 2 partitions:
    579MB System Reserved ans C drive.
    Agreed. This is how the Renewed/Refurbished Notebook I got 2 weeks ago arrived with a clean install on a 128GB SSD:
    Just done a clean install of W10-image.png
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  6. Bree's Avatar
    Posts : 19,618
    10 Home x64 (21H1) (10 Pro on 2nd pc)
       #6

    Bluenose1940 said:
    ...Are you saying that I should delete ALL partitions on the SSD from the outset? Can I do that and then format the remaining partition in readiness to do the re-install from my flash drive so that the drive is completely clean?

    There is no need to prepare and format the drive before the clean install. You should just tell Setup to delete all existing partitions during the install process. See this tutorial:

    If you have more than one partition for a Drive # (hard drive) listed and want to get rid of all of them to make that disk # one single partition drive again, then select a partition with that disk # and click on the Delete option for each partition with the same Drive # until there is only one "unallocated space" with that Drive # left...
    Clean Install Windows 10
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  7. Posts : 170
    Windows 10
    Thread Starter
       #7

    I've gone into Disk management but cannot for the life of me see an option to delete any partitions. Should I be going another route to achieve this?
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  8. Bree's Avatar
    Posts : 19,618
    10 Home x64 (21H1) (10 Pro on 2nd pc)
       #8

    Bluenose1940 said:
    I've gone into Disk management but cannot for the life of me see an option to delete any partitions. Should I be going another route to achieve this?
    No need, boot from the install usb and in the Custom Install just select each existing partition in turn and tell Setup to delete it. When Setup shows the whole drive as 'unallocated', tell Setup to install Windows there.
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  9. Berton's Avatar
    Posts : 10,999
    Win10 Pro Versions 2004 and 2009/20H2, Win10 Pro IP_Dev, Win10 Home 1909
       #9

    Bluenose1940 said:
    I've gone into Disk management but cannot for the life of me see an option to delete any partitions. Should I be going another route to achieve this?
    To add to what Bree said, please keep in mind that the OS/Operating System will not allow deleting some partitions on the drive it is installed on, won't/can't kill itself, which is where third-party software can become useful.
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  10. NavyLCDR's Avatar
    Posts : 15,657
    Windows 10 Pro
       #10

    During the install, just do what @Bree instructed. Boot from the USB flash drive. Select the custom install option. On the next screen, highlight each partition and click delete. Once you have only 1 large unallocated space left, highlight that and click next. There is no need for third party software.
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