Windows 10: Clean Windows Install: Do I need the 100mb EFI System Partition?

Discus and support Clean Windows Install: Do I need the 100mb EFI System Partition? in Windows 10 Installation and Upgrade to solve the problem; Okay, so I just got a new laptop. It is a Lenovo, a deal I just got from Costco for $400 exactly. Latest i3, 256 SSD, 8 gigs ram, etc. Nothing special.... Discussion in 'Windows 10 Installation and Upgrade' started by g725s, Jul 9, 2019.

  1. g725s Win User

    Clean Windows Install: Do I need the 100mb EFI System Partition?


    Okay, so I just got a new laptop. It is a Lenovo, a deal I just got from Costco for $400 exactly. Latest i3, 256 SSD, 8 gigs ram, etc. Nothing special. I will use it mainly for taking my QuickBooks with me and surfing the web and email and Word with Office.

    But I've always been one to do Clean Installs of Windows and get rid of the bloat.

    My laptop came with 3 partitions that I am aware of. 2 that I'm not sure I need or not.
    The OEM Recovery partition and the EFI System Partition.

    I kind of got ahead of myself and did what I thought was a clean install of Windows 10 (Home I believe) using Windows Media tool and via a USB drive. But now notice that there are these other partitions. Even though I tried to delete and consolidate any partitions during the clean install at the beginning where you can do that with the drive.

    Since doing the clean install and then finding these other partitions I have already deleted the OEM Recovery partition using diskpart.

    Is the EFI system partition a Lenovo thing? It is necessary?

    :)
     
    g725s, Jul 9, 2019
    #1

  2. The Efi system partition deleting during clean install....

    Hello,

    I have the Dell inspiron 15 5558 and i wanted to know that mine got a partition called the "EFI system partition" which is of 100mb. So, when i will go to clean install of windows 10 to the step to delete all my partitions, will that system reserved partition
    be recreated during install? Or i have to click on new, and then that system reserved partition gets created(which will be of 500mb for windows10 according to my research)?
     
    Milind Goel, Jul 9, 2019
    #2
  3. The Efi system partition deleting during clean install....

    hi,

    You are saying that i should not delete them (the EFI System partition) and just install windows to primary or main partition. Please tell me that i am correct in understanding this. If i am not, please give some easy step to do so.

    Also, If i delete all my partitions including EFI and then click next to install windows, can't that be recreated. The disk looks like this


    Clean Windows Install: Do I need the 100mb EFI System Partition? cb00b586-b41b-4a25-bdc5-cd6a009f2f20?upload=true.png


    The MSR reserved partition i have deleted on previous clean install and also the recovery which was of win8.1 which i don't want. Please help.
     
    Milind Goel, Jul 9, 2019
    #3
  4. Clean Windows Install: Do I need the 100mb EFI System Partition?

    The Efi system partition deleting during clean install....

    Yes, BIOS MBR, you can format the whole drive NTFS and install. Your Windows recovery Environment will then be located in C:\ after install. There is always a MSR, Microsoft Reserve. It is hidden and only 100MB. You do not need anything else.

    You can just create one big partition, format NTFS Quick and install.

    Even if you have UEFI system, you can select BIOS MBR install and exclude the EFI and its Partition.

    If you do MBR install and do not want the recovery 350MB partition, then on install, delete all partitions, create ONE PARTITION, Format Quick NTFS and install.
     
    seahawks65, Jul 9, 2019
    #4
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Clean Windows Install: Do I need the 100mb EFI System Partition?

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