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Unmountable Boot Volume Windows 8 Fix

Josh Hunt

New Member
I shutdown my laptop and left it for a minute or two and when i came back to my laptop was frozen so i held the power button till it shutdown and then when i turned it back on it was taking a long time and then a blue screen appeared with a error it only appeared for a second so i film it and re-watched the video and paused it the error said "unmountable boot volume"

Is there a solution for this error and will i be able to recover my file if the hard drive is corrupt?
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop

Josh Hunt

New Member
can i do this without downloading a install ISO i can just press F8 and select Repair your computer​ then select command prompt and then execute the commands there?


When is used the command "Bootrec /ScanOs" it said "Total identified Windows installation: 0"

[h=3]What does this mean?[/h]
 
Last edited:

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop

genet

New Member
Guru
When is used the command "Bootrec /ScanOs" it said "Total identified Windows installation: 0"

What does this mean?

This result most likely means that Windows installation data in the BCD store exists but bootrec couldn't find any additional installations of Windows on your computer to add to the BCD.

The bootrec /scanos and bootrec /rebuildbcd command will search for Windows installations not included in the Boot Configuration Data (BCD).
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    System Manufacturer/Model
    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.

Josh Hunt

New Member
Does that mean windows is installed but the commandbootrec /scanos and bootrec /rebuildbcd are not searching in the BCD so it says there is not ​Windows installation when it accurately is.

Do you have any ideas no how to fix this? I can seem to find a solution for this error :( also i would like to recover my data i booted Ubuntu but it said
ntfs unsafe state i tried to force mount the drive but then i got another error and are there any other Linux OS that can help me recover my data.

Would i need to get a new hard drive?
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop

KYHI

Well-Known Member
Pro User
If F8 works for you, cool... most of the time is does not..

From command prompt type>

bcdboot c:\windows

reboot and see if you get the unmountable volume error

a bad or failing HD does appear to also cause this error message - not saying it is, but..
 

My Computer

System One

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

Josh Hunt

New Member
i tried the command "bcdboot c:\windows" without the installation files and it said "bcdboot Failure when attempting to copy boot files"

i'm now going to boot the installation file from my USB and see if the error persists and if it does should i do a Start up repair?

I have now booted from the
installation files and when into CMD and the error still came up i would like to now do a Start up repair but what will it do and could it make the problem even worse?
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop

KYHI

Well-Known Member
Pro User
you can try doing a startup repair from the booted setup media - you can also run the commands from the setup media by pressing F10 or SHIFT+F10 while on the install - repair screen
 

My Computer

System One

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

Josh Hunt

New Member
i booted WIN81SE_x64 to see if i could access my HD and i was able to browse through my files but my windows installation files where in drive letter E not C but is this because i have booted using WIN81RESE_x64? also should i open Command Prompt and insted of "bcdboot c:\windows" should i do "bcdboot e:\windows" but when i was last using windows the drive letter was C.
 
Last edited:

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop

genet

New Member
Guru
Quote from this post:

If the drive letter is incorrect, you will receive the following error message: "Failure when attempting to copy boot files."
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    System Manufacturer/Model
    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.

Josh Hunt

New Member
i open CMD and did bootrec /scanOs and it said

Total identified Windows installation: 1
[1] E:\windows
The operation completed successfully.


When i did this in the repair menu before it said

Total identified Windows installation: 0
The operation completed successfully.

and then i did
bootrec /rebuildbcd and it said

Total identified Windows installation: 1
[1] E:\windows
add installanation to boot list? Yes(Y)/No(N)/All (A)

Drive letter C says "System Reserved"

What should i do now help please?
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop

banger

New Member
Member
I would get your files off the HDD while you still can.
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    Computer type
    PC/Desktop
    System Manufacturer/Model
    MSI MS7360
    CPU
    Intel E8400 (Wolfdale)
    Motherboard
    MS 7360 P35 V1.0
    Memory
    4 GB
    Graphics Card(s)
    MSI Geforce GT610
    Sound Card
    Realtek Onboard
    Monitor(s) Displays
    Dell 19" Widescreen
    Screen Resolution
    1920 x 1080
    Hard Drives
    3 x 500 GB Hitachi and Seagate Drives
    PSU
    Corsair 500W
    Case
    Generic
    Cooling
    2 case fans, Artic CPU Cooler
    Keyboard
    Logitech G19
    Mouse
    MS Comfort 4500
    Internet Speed
    19 mbps
    Browser
    Firefox
    Antivirus
    MS Defender

Superfly

Developer
VIP Member
Guru
Have you run a check on that partition...

CHKDSK E: /R /F
 

My Computer

System One

  • OS
    PC-DOS v1.0
    Computer type
    PC/Desktop
    System Manufacturer/Model
    IBM
    CPU
    Intel 8088, 4.77MHz
    Memory
    16K, 640K max
    Graphics Card(s)
    What's that?
    Sound Card
    Not quite
    Screen Resolution
    80 X 24 text
    Hard Drives
    dual 160KB 5.25-inch disk drives

KYHI

Well-Known Member
Pro User
Using RE you are booted into memory X:
If your windows directory is now assigned E:
then the command would now be E:

Total identified Windows installation: 1
[1] E:\windows
add installanation to boot list? Yes(Y)/No(N)/All (A)

so the answer would be yes

also do the checkdisk as posted above
 

My Computer

System One

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

Josh Hunt

New Member
I have now started the checkdisk could this take a few hours?

What can i do with Aomei Partition Assistant?

i will get back to you when the scan if finished or tommorow if the scan takes a few hours.

what should i do if it stops scanning in task manager it says CPU 0%
 
Last edited:

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop

KYHI

Well-Known Member
Pro User
Josh, You are not in a windows environment, do not expect what you are working with is the same as windows.. You are in a recovery GUI..
 

My Computer

System One

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

Josh Hunt

New Member
The scan has now been going on for hours the is the result so far:

Stage 1: Examining basic file system structure ...
File record segment 868 is unreadable.
File record segment 869 is unreadable.
File record segment 870 is unreadable.
File record segment 871 is unreadable.
File record segment 14324 is unreadable.
File record segment 14325 is unreadable.
File record segment 14326 is unreadable.
File record segment 14327 is unreadable.
File record segment 15536 is unreadable.
File record segment 15537 is unreadable.
File record segment 15538 is unreadable.
File record segment 15539 is unreadable.
File record segment 17956 is unreadable.
File record segment 17957 is unreadable.
File record segment 17958 is unreadable.
File record segment 17959 is unreadable.
File record segment 20516 is unreadable.
File record segment 20517 is unreadable.
File record segment 20518 is unreadable.
File record segment 20519 is unreadable.
File record segment 21728 is unreadable.
File record segment 21729 is unreadable.
File record segment 21730 is unreadable.
File record segment 21731 is unreadable.
File record segment 22936 is unreadable.
File record segment 22937 is unreadable.
File record segment 22938 is unreadable.
File record segment 22939 is unreadable.
File record segment 24148 is unreadable.
File record segment 24149 is unreadable.
File record segment 24150 is unreadable.
File record segment 24151 is unreadable.
File record segment 25360 is unreadable.
File record segment 25361 is unreadable.
File record segment 25362 is unreadable.
File record segment 25363 is unreadable.
File record segment 26568 is unreadable.
File record segment 26569 is unreadable.
File record segment 26570 is unreadable.
File record segment 26571 is unreadable.
File record segment 27780 is unreadable.
File record segment 27781 is unreadable.
File record segment 27782 is unreadable.
File record segment 27783 is unreadable.
File record segment 32764 is unreadable.
File record segment 32765 is unreadable.
File record segment 32766 is unreadable.
File record segment 32767 is unreadable.
File record segment 33972 is unreadable.
File record segment 33973 is unreadable.
File record segment 33974 is unreadable.
File record segment 33975 is unreadable.
File record segment 36392 is unreadable.
File record segment 36393 is unreadable.
File record segment 36394 is unreadable.
File record segment 36395 is unreadable.
Progress: 36433 of 502784 done; Stage: 7%; Total: 0%; ETA: 999:00:00 ..

Does the part "ETA: 999:00:00 .." the estimate time it will take to scan the drive?

Should i abort the scan or just wait till it finishes?
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
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