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Solved No Operative System boots. I deleted EFI Partition


DRFUTTER

New Member
Posts
12
#1



Hello friends. Let me tell you what happened. In my laptop currently I have two discs. One HDD 1TB and a SSD 256GB. Before having my SSD drive my laptop used windows 8.1 in the HDD drive, where I initially had two partitions one for windows and another one for documents and data. When I bought my SSD drive I installed windows 8.1 on it to test it and I was using my computer with both of these operating systems normally. I had always planned for cleaning my HDD drive and just leave it as a drive for Data and run windows 8.1 installed in the SSD.
To complete one school assigment I installed Linux Ubuntu 14.04. However, to do so I created a new partition
of 105 GB from the free space I had in the HDD drive and installed it there. It worked fine with no problems, but at that time I had three Operating Systems in my laptop which was a waste of space. My HDD drive had a lot of partitions, so I deleted all the partitions that didnt have my data including the original Windows 8.1 and the EFI partition, which I know now it is used for botting everything. Hence, in that disc the only thing left was two partitions Ubuntu and my data.

Now nothing works, none of my OS boots. My SSD drive has Windows installed but it does not have anyh bootloader. My HDD drive has linux installed but the grub doesnt work either. I tried to fix using some softwares I checked on the internet called Supergrubdisk and Rescatux but nothing has worked. Please help me with this problem I want to get the EFI partition back and run both operating systems windows from the SSD accesing my data partition in the HDD and Ubuntu in the HDD as well. I dont want to reinstall from zero and lose my data if possible,

Sorry for the big post but I wanted to explain in detail to avoid confusion and random useless questions.

Thank you in advance.

 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ACER
    Memory
    8 Gb Ram
    Monitor(s) Displays
    17.6 inch
    Screen Resolution
    HD 1920x1080
    Hard Drives
    1 HDD 1TB
    1 SSD 256GB
    Browser
    Google Chrome

genet

New Member
Guru
Posts
879
#2
How to create the missing EFI System partition. -> link
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    System Manufacturer/Model Number
    Lenovo G580
    CPU
    Intel Core i5-3230M
    Memory
    8 GB
    Graphics Card(s)
    Intel HD Graphics 4000
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender, standard user account
    Other Info
    UEFI firmware (BIOS) embedded Windows 8 product key.

DRFUTTER

New Member
Posts
12
#3
I tried the steps shown in the other tutorial but when using bcdboot command to copy the files I receive an error saying: failure when attempting to copy boot files
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ACER
    Memory
    8 Gb Ram
    Monitor(s) Displays
    17.6 inch
    Screen Resolution
    HD 1920x1080
    Hard Drives
    1 HDD 1TB
    1 SSD 256GB
    Browser
    Google Chrome

DRFUTTER

New Member
Posts
12
#4
here is the screenshot
 

Attachments

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ACER
    Memory
    8 Gb Ram
    Monitor(s) Displays
    17.6 inch
    Screen Resolution
    HD 1920x1080
    Hard Drives
    1 HDD 1TB
    1 SSD 256GB
    Browser
    Google Chrome

KYHI

Well-Known Member
Pro User
Posts
2,742
#5
Diskpart
select volume 2
Assign letter=S
exit

bcdboot C:\Windows /s S:
 

My Computer

System One

  • OS
    Windows 3.1 > Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell XPS 8700
    CPU
    I7
    Memory
    24 GB

DRFUTTER

New Member
Posts
12
#6
it worked with the steps you told me but I still have the boot problem when i restart the computer. I tried booting in both modes legacy and UEFI placing the SSD drive as the first priority but still doesnt work. what else can I try?
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ACER
    Memory
    8 Gb Ram
    Monitor(s) Displays
    17.6 inch
    Screen Resolution
    HD 1920x1080
    Hard Drives
    1 HDD 1TB
    1 SSD 256GB
    Browser
    Google Chrome

KYHI

Well-Known Member
Pro User
Posts
2,742
#7
What OS is on C:\ ??
 

My Computer

System One

  • OS
    Windows 3.1 > Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell XPS 8700
    CPU
    I7
    Memory
    24 GB

DRFUTTER

New Member
Posts
12
#8
Windows 8.1
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ACER
    Memory
    8 Gb Ram
    Monitor(s) Displays
    17.6 inch
    Screen Resolution
    HD 1920x1080
    Hard Drives
    1 HDD 1TB
    1 SSD 256GB
    Browser
    Google Chrome

DRFUTTER

New Member
Posts
12
#9
it is in my SSD Drive, is there any special condition for a SSD drive?
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ACER
    Memory
    8 Gb Ram
    Monitor(s) Displays
    17.6 inch
    Screen Resolution
    HD 1920x1080
    Hard Drives
    1 HDD 1TB
    1 SSD 256GB
    Browser
    Google Chrome

KYHI

Well-Known Member
Pro User
Posts
2,742
#10
diskpart
list disk
select disk 0
list partition
select disk 1
list partition

post a pic of diskpart windows (info)

I assume the SSD has just windows 8.1 on it and the HDD has all the boot and recovery files on it...
If that is the case - you should be booting to the HDD and not the SSD
 

My Computer

System One

  • OS
    Windows 3.1 > Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell XPS 8700
    CPU
    I7
    Memory
    24 GB

DRFUTTER

New Member
Posts
12
#11
Yes you are right. Previously the EFI partition was in the HDD and that handled the original Windows 8.1 and the Windows 8.1 that I installed in the SSD. Is there any way I can put that EFI partition in the SSD drive to boot like I tried? I will try your advice and repair the EFI in the HDD also, but I want to know if there is a way I can do what I asked you, that was actually why the EFI partition was deleted.
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ACER
    Memory
    8 Gb Ram
    Monitor(s) Displays
    17.6 inch
    Screen Resolution
    HD 1920x1080
    Hard Drives
    1 HDD 1TB
    1 SSD 256GB
    Browser
    Google Chrome

KYHI

Well-Known Member
Pro User
Posts
2,742
#12
shut down and remove HDD
shrink the Partition on the SSD by 228MB
diskpart
list disk
select disk # Note: Select the disk where you want to add the EFI System partition.
list partition
select partition # Note: Select the Windows OS partition or your data partition.
shrink desired=228
create partition efi size=100
format quick fs=fat32 label="SYSTEM"
assign letter="Q"
create partition msr size=128

bcdboot C:\Windows /s Q: /f UEFI
 

My Computer

System One

  • OS
    Windows 3.1 > Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell XPS 8700
    CPU
    I7
    Memory
    24 GB

DRFUTTER

New Member
Posts
12
#13
Thank you so much for your help. i have these three partiotions as in the picture do i still need to shrink the primary partition or can I use the ones I have already.
20151024_115456.jpg
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ACER
    Memory
    8 Gb Ram
    Monitor(s) Displays
    17.6 inch
    Screen Resolution
    HD 1920x1080
    Hard Drives
    1 HDD 1TB
    1 SSD 256GB
    Browser
    Google Chrome

genet

New Member
Guru
Posts
879
#14
i have these three partiotions as in the picture do i still need to shrink the primary partition
No.

First, try to fix the current EFI System partition.

bcdboot X:\windows Note: Replace "X" with the volume letter of the Windows OS partition.

- Here is more info: https://technet.microsoft.com/en-us/library/hh824874.aspx?f=255&MSPPError=-2147217396

If that doesn't work, then recreate the EFI System partition.

- How to create the missing EFI System partition. -> link

How to delete the EFI System partition.

diskpart
list disk
select disk #
list partition
select partition # Note: Make sure to select the EFI System partition.
delete partition override
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    System Manufacturer/Model Number
    Lenovo G580
    CPU
    Intel Core i5-3230M
    Memory
    8 GB
    Graphics Card(s)
    Intel HD Graphics 4000
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender, standard user account
    Other Info
    UEFI firmware (BIOS) embedded Windows 8 product key.

KYHI

Well-Known Member
Pro User
Posts
2,742
#15
you can use the 3 partition you already have,, follow as above post..

Note: the EFI partition would be the 260MB partition
 

My Computer

System One

  • OS
    Windows 3.1 > Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell XPS 8700
    CPU
    I7
    Memory
    24 GB

DRFUTTER

New Member
Posts
12
#16
Thank you very much! I tried the mix of genet advice and KYHI advice and now th windows from the SSD is booting normally. However I still have one problem, I removed the HDD disk to complete the process, but now that I put it back I cannot access from windows, t is not being recognized. Please help me with this last part.
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ACER
    Memory
    8 Gb Ram
    Monitor(s) Displays
    17.6 inch
    Screen Resolution
    HD 1920x1080
    Hard Drives
    1 HDD 1TB
    1 SSD 256GB
    Browser
    Google Chrome

DRFUTTER

New Member
Posts
12
#17
Hello guys, KYHI or genet can you please help me with the problem I am having that the HDD drive is not being recognized in Windows.
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ACER
    Memory
    8 Gb Ram
    Monitor(s) Displays
    17.6 inch
    Screen Resolution
    HD 1920x1080
    Hard Drives
    1 HDD 1TB
    1 SSD 256GB
    Browser
    Google Chrome

KYHI

Well-Known Member
Pro User
Posts
2,742
#18
Go into disk management - is it there ??
use diskpart > list disk - is it there ?
 

My Computer

System One

  • OS
    Windows 3.1 > Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell XPS 8700
    CPU
    I7
    Memory
    24 GB

DRFUTTER

New Member
Posts
12
#19
It is does not appear in the disk management. and when I used the cmd inside Windows to list disks with diskpart it doesnt show either.
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ACER
    Memory
    8 Gb Ram
    Monitor(s) Displays
    17.6 inch
    Screen Resolution
    HD 1920x1080
    Hard Drives
    1 HDD 1TB
    1 SSD 256GB
    Browser
    Google Chrome

DRFUTTER

New Member
Posts
12
#20
Hello guys, I solved it. First I went to check if in the BIOS the disk was recognized. And it did appear there. After booting I checked the Disk Management again and voila!! the disk was there. Thank you very much for all your help, especially KYHI and genet, I really appreciate it. This forums are the best thing we have as users, it gives us the chance to ask experts such as you when we get frustrated about a problem I tried several forums and online searches but nobody gave me a staright answer and support like in here. We can mark as solved and close this topic.
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ACER
    Memory
    8 Gb Ram
    Monitor(s) Displays
    17.6 inch
    Screen Resolution
    HD 1920x1080
    Hard Drives
    1 HDD 1TB
    1 SSD 256GB
    Browser
    Google Chrome