Windows 10: Windows 10 EFI partition missing

Discus and support Windows 10 EFI partition missing in Windows 10 Installation and Upgrade to solve the problem; I have an ASUS GL502VS which I previously had dual boot with Ubuntu. Until the last Windows update it was working fine. I tried installing the latest... Discussion in 'Windows 10 Installation and Upgrade' started by afkplus85, Feb 12, 2020.

  1. afkplus85 Win User

    Windows 10 EFI partition missing


    I have an ASUS GL502VS which I previously had dual boot with Ubuntu. Until the last Windows update it was working fine. I tried installing the latest Windows 10 update I guess 1909 yesterday. At first it worked fine but after a restart I realized that it isn't working properly my web browsers wasn't able to resolve the DNS for example. I decided to reinstall Windows. I created a recovery drive. I booted from this drive and installed Windows using the drive. Now I can't boot into Windows. The EFI boot partition seems to be missing and whatever I tried I wasn't able to get it working. Any suggestions?

    :)
     
    afkplus85, Feb 12, 2020
    #1
  2. trog100 Win User

    Move EFI partition

    its to enable win 10 to update to its anniversary edition.. it cant do this due to lack of C drive space i have had a quick try with the trial version of easus.. it didnt seem to be able to do what i want..

    i am assuming i cant just delete the efi partition but maybe i could.. as yet i havnt even figured out how to get into the bios of the thing.. maybe that should be my next step.. *Smile Windows 10 EFI partition missing :)

    diskpart could probably do it but figuring out how (it aint that user friendly) might be difficult without step by step instructions..

    trog
     
    trog100, Feb 12, 2020
    #2
  3. Suvrat18 Win User
    Blank EFI Partition

    I have an ASUS R558UR.

    I had windows 10 installed on my laptop and I decided to again have a clean install of windows 10. I booted from USB and cleaned windows partition i.e. C drive and also cleaned EFI partition. I reformatted Drive and it had also created EFI partition of 100
    MB. I installed windows on laptop and setted that up. After installing windows my laptop it started taking a long time to boot about 90 seconds but earlier it took only 7-10 seconds. After analysing everything I found that my EFI partition is blank.

    Please suggest me how to write back EFI partition so as to reduce boot times.

    Thanks in Advace.
     
    Suvrat18, Feb 12, 2020
    #3
  4. Windows 10 EFI partition missing

    EFI partition missing

    I bought a new SSD and did a clean installation of Windows 10 on the new drive, but i'm still keeping my old HDD into my laptop as a secondary drive.

    After the installation worked (the laptop was working correctly) I decided to format my old HDD. After a reboot i got this message "default boot device missing, select a new boot device" but in the list there isn't any any element to choose. I booted from
    USB and checked with DISKPART from Prompt and there isn't any EFI partition in the SSD. I even tried with bootrec but it says "access denied" and the boot recovery tool isn't working either. My laptop can't boot and I can only use prompt. Can anybody help
    me?
     
    SalvatoreCS, Feb 12, 2020
    #4
Thema:

Windows 10 EFI partition missing

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