Windows 10: EFI Partition on both SSD and HDD; can I safely delete the one in HDD

Discus and support EFI Partition on both SSD and HDD; can I safely delete the one in HDD in Windows 10 Performance & Maintenance to solve the problem; When I installed Windows 10 on the SSD, I didn't remove the HDD (it's on an Acer Aspire E5-475G laptop and it was difficult to physically remove it).... Discussion in 'Windows 10 Performance & Maintenance' started by gralsean16, May 27, 2019.

  1. EFI Partition on both SSD and HDD; can I safely delete the one in HDD


    When I installed Windows 10 on the SSD, I didn't remove the HDD (it's on an Acer Aspire E5-475G laptop and it was difficult to physically remove it). So I created a new EFI Partition on the SSD.

    Now I have an EFI partition in both my HDD and my SSD.


    EFI Partition on both SSD and HDD; can I safely delete the one in HDD [​IMG]


    So I was wondering if it was safe to delete the EFI partition on the HDD.

    :)
     
    gralsean16, May 27, 2019
    #1
  2. NeoBeum Win User

    Access denied to entire HDD

    I want to add that have you cloned your original HDD correctly? or is the PC still booting from the old HDD, because there is a hidden OEM partition on it?

    Ignore what may HDD layout looks like in DIskMgmt, I created a custom layout - but the partition you'll need to look for is the first partition "EFI System Partition"

    If that is still on the Old HDD, don't clean the disk. you'll need to create your partitions on the SSD correctly, and also tell your bootmanager/bios to boot from the correct EFI partition/SSD
     
    NeoBeum, May 27, 2019
    #2
  3. HLL_544 Win User
    Saving free space on SSD (Regarding multiple obligatory partitions on main drive)

    Gerry Here just copy-paste some irrelevant response.

    Well, **I've figured it out**. Here my solution (I Take no responsibility from any damage that might arise from this process, and I do not guarantee it to work for u.)

    We'll assume u have 2 disks; SSD and HDD.

    Also NOTE: I Work in a GPT-Disk partitioning scheme, I don't know if it's applicable on dos-style MBR partitioning.

    General-methodology wich we are going to work with (or TL;DR).

    • Delete all partitions on all drive
    • Install Windows on the HDD Drive
    • Install Windows on the SSD Drive (yes, twice!)
    • Repartition the HDD to free up and reallocate as we wish (The only parition that HAVE to be there is the EUFI System (Fat) )
    • After freeing up HDD space, move user folder to the HDD
    • PROFIT
    And in more detail:

    THIS GUIDE ASSUME THIS IS A FRESH PC - THAT U DO NOT HAVE ANYTHING U NEED ON EITHER DISKS.

    * - Asterisk, not a real step, just additional information

    • Boot into windows 10 installation
    • Clear ALL partitions on BOTH drives
    • Let windows install itself onto the HDD, We'll call this installation win-hdd
      • There is no need to actually boot into this OS.
    • Boot into windows 10 installation
    • Let windows install itself onto the SSD. We'll call this installation win-ssd
      • *What would happen now, Is that windows detects the recovery and eufi partitions and does not need to create such additional partitions on your ssd. It would only create a 16MB windows reserved partition.
      • *Your boot partition would be hdd/eufi; But since windows detect it's own bootloader it would allow you to duel-boot between win-hdd and win-ssd(default)
    • Optional: During windows-ssd first run wizard switch to audit mode (CTRL+SHIFT+F3)
      • *We would use audit mode to:
        • * Optional1: Repartition hdd
        • * Optional2: Change "Users" folder to the hdd.
        • * If u do not want to move Users folder, u can do 6.2 After win-ssd fully boots instead
      • Repartition hdd & move Users folder:
        • Using a 3rd party tool such as "MiniTool Partition Wizard" you can do the fallowing *as you wish*:
          • Delete win-hdd partition
          • Delete recovery-hdd partition
          • Delete windows reserved (16 mb) partition.
          • You can also later move the EUFI to the start of the hdd disk, if needed
          • Create new partition (free to use) on hdd.
          • Make sure to properly assign drive letters to all drive as u wish
          • Fallow
            this guide
            to relocate the User folder (Starting from Step 2)
    • Boot into windows-ssd; If u do not know which one (int the OS selection screen) It's safe to assume that the automatically-selected one is the win-ssd.
    • If u have not performed 6.2 Yet, this is the time to do that now.
    GLHF.
     
    HLL_544, May 27, 2019
    #3
  4. EFI Partition on both SSD and HDD; can I safely delete the one in HDD

    Trying to delete a system partition on an HDD after reinstalling Windows 10 on an SSD

    I can't delete this wretched OEM system partition on my HDD which originally had Windows 8.1 preinstalled on it. After upgrading to Windows 10 I've since bought an SSD and installed Windows 10 onto it seperately and was using dual boot for a while so I could
    choose between my HDD OS and my SSD OS. I then transfered everything I needed from my original 1TB HDD to my 1TB SSD and my new 4TB HDD and I've deleted all but one partition from the original HDD, which I still want to use and simply wipe clean before I do.
    It's an OEM system partition though and won't delete using an administrator command prompt and diskpart, even with the override command:

    Microsoft Windows [Version 10.0.10586]

    (c) 2015 Microsoft Corporation. All rights reserved.

    E:\Windows\system32>cd\

    E:\>diskpart

    Microsoft DiskPart version 10.0.10586

    Copyright (C) 1999-2013 Microsoft Corporation.

    On computer: PC2

    DISKPART> list disk

    Disk ### Status Size Free Dyn Gpt

    -------- ------------- ------- ------- --- ---

    Disk 0 Online 931 GB 0 B *

    Disk 1 Online 931 GB 931 GB *

    Disk 2 Online 3726 GB 0 B *

    DISKPART> select disk 1

    Disk 1 is now the selected disk.

    DISKPART> list partition

    Partition ### Type Size Offset

    ------------- ---------------- ------- -------

    Partition 1 System 260 MB 301 MB

    DISKPART> select partition 1

    Partition 1 is now the selected partition.

    DISKPART> delete partition

    Virtual Disk Service error:

    The device is in use.

    The selected volume or partition is in use.

    To continue with the operation use the OVERRIDE parameter.

    DISKPART> delete partition override

    Virtual Disk Service error:

    Delete is not allowed on the current boot, system, pagefile,

    crashdump or hibernation volume.

    DISKPART>

    I used bcdboot to move the boot manager to my E: drive which was successful but I still can't delete this partition. By the way, my new setup is intended to be:

    disk 0 (1TB SSD) E: - OS (Windows 10) and games

    disk 1 (1TB HDD) F: - Programs (or "Apps") which is the one I'm trying to wipe clean (formerly CEFI Partition on both SSD and HDD; can I safely delete the one in HDD :)

    disk 2 (4TB HDD) G: - Media (documents, downloads, music, pictures and videos)

    Thanks.
     
    CommodoreC2N, May 27, 2019
    #4
Thema:

EFI Partition on both SSD and HDD; can I safely delete the one in HDD

Loading...
  1. EFI Partition on both SSD and HDD; can I safely delete the one in HDD - Similar Threads - EFI Partition both

  2. EFI partition deleted

    in Windows 10 Drivers and Hardware
    EFI partition deleted: While installing a different OS. My EFI partition was wiped and set as unallocated space. I booted up a linux live cd and partitioned the unallocated space, formatting it back to FAT32. I was able to restore grub and boot into my linux distro. Now I want to restore windows'...
  3. EFI partition deleted

    in Windows 10 Support
    EFI partition deleted: While installing a different OS. My EFI partition was wiped and set as unallocated space. I booted up a linux live cd and partitioned the unallocated space, formatting it back to FAT32. I was able to restore grub and boot into my linux distro. Now I want to restore windows'...
  4. Can the EFI partition be briefly and safely mounted?

    in AntiVirus, Firewalls and System Security
    Can the EFI partition be briefly and safely mounted?: Can the EFI partition be briefly and safely mounted? Am I correct that mountvol p: /s will mount the EFI partition to drive letter p? Does mounting the EFI partition create a security issue for the pc?...
  5. intergation data partition in HDD into ssd

    in Windows 10 Installation and Upgrade
    intergation data partition in HDD into ssd: After migrating the system and OS +programs from HDD to SSD, I am left with the choice of either keeping the Data Files ( < 5Gb) that I had in the HDD as a separate partition in the SSD or integrate it into the c drive in one large partition . If I want to integrate it with...
  6. Span Partition over SSD and HDD

    in Windows 10 Drivers and Hardware
    Span Partition over SSD and HDD: Hi everyone! I'm planning to span my D: Drive (which is now a 2 TB HDD) partition over to a new 128 GB SSD. That partition holds Program Files and Program Files (x86) as alternatives to the ones on my system drive, since that's an SSD too small for all my installed programs...
  7. Delete OS Partition on HDD

    in Windows 10 Support
    Delete OS Partition on HDD: Hi so tomorrow I'm going to change my OS from an HDD to an SSD. Thing is that I want to use my HDD that I'm replacing as back up storage and I heard you can keep your info from the old HDD without having to format it, but you can delete the OS partition of the drive. Anyone...
  8. Win 10 on both HDD and SSD?

    in Windows 10 Drivers and Hardware
    Win 10 on both HDD and SSD?: I will buy a SSD for my Acer desktop and install Win 10 on it and other programs I have on my computer. If I do a clean install of Win 10 on my SSD, do I have to delte Win 10 on the HDD first? I guess it is not allowed having two Windows 10 on the same computer (both...
  9. Can I delete one EFI partition?

    in Windows 10 Performance & Maintenance
    Can I delete one EFI partition?: Hi at all! I have used this procedure to move from Legacy BIOS to UEFI. Now msinfo32 shows UEFI, but I have two EFI partitions. See here: [img] Can I delete the third partition, without making my system unbootable? Thanks in advance! 75670
  10. hdd to ssd

    in Windows 10 Installation and Upgrade
    hdd to ssd: [img] Hi I have cloned my new HP laptop (HDD) with Acronis to a new SSD drive I've attached a snap shot of the disk management to see if it looks right with a 10gig unallocated partition and EFI partition. 40758