Windows 10: Hard Disk Corrupted - install Window without data loss

Hi Everyone,



Recently, there is a window update in my server so I did the update. When it updates, my colleague turns off the power supply accidentally. When I boot it up again, it went to a blue screen and ask me to reinstall the window. I would like to ask is there any solution to solve this without losing all the data in the HDD?

:)

 

how to convert Dynamic disk to Basic disk without data loss ?

Hi,

The process of conversion is quite tricky but not exactly that complicated. Suggested safe is to have your data cloned and work on the clone instead of the original. This suggestions and steps were provided by one of the Microsoft Community Forum MVP's,
John John__ in his response on this thread. Follow the steps carefully
to be able to avoid data loss.

I hope it helps. If you have any other concerns, don't hesitate to come back to us.

 

Windows 10 installation convert from MBR to GPT without data loss

Hi JKMG72,

Thank you for writing to Microsoft Community Forums.

I'll need a few more details to analyze your concern & provide an accurate solution:

1. Are you still facing the issue with Blue screen?
   
2. Is the D drive a partition created within the same hard disk?
   

The problem might occur if the hard disk is failing. Hard disk can be corrupted because of hardware fault. If we have to convert the disk from MBR to GPT, there is high chance of Data loss. The conversion is possible only if there
are no partitions or volumes present in the disk, which makes it impossible to convert without data loss.

If you wish to recover the data before the conversion, I would suggest you to follow the steps mentioned below.

Method 1: Backup data using Command prompt.

1. Attach the Installation media
   (USB/DVD which has windows 10) into the computer.
   
2. Restart your PC, and then press any key to boot from the USB flash drive or the DVD.
   
3. Click on Repair your computer.
   
4. Select Troubleshoot > Click on Advance options.
   
5. Select Command Prompt from the list.
   
6. Type: Notepad.exe
   
7. This will open the Notepad > Go to File >Select, Open > this will open the Windows explorer window. Attach the External hard disk or backup media to back up your files.
   
8. Click on This PC > Select the C drive (C is the drive, where Windows is installed).
   
9. Open Users folder > Open the Username folder and check if you can find the files or your data.
   
10. Now, right click on the folders > Select Move to and choose the destination as your External Hard Disk.
    
11. You will not see a progress bar, the time depends on the amount of data to be copied. After sometime, plug out the External hard disk, connect it in the different computer and check if you have all the required
    files.
    

Method 2: Convert from MBR to GPT.

Follow the same steps (From 1-5) as above to open the command prompt using Installation media.

1. In the command prompt, type:
   DISKPART
   
2. Then, type: List Disk (Note down the disk which you want to convert to GPT)
   
3. Then, type: Select Disk DiskNumber (Disk number is the disk which is listed in the above command, Ex:
   Select disk 0)
   
4. Now, type: Clean
   
5. Then, type: Convert GPT
   
6. Lastly, type: Exit
   

Now, start the Windows installation to install it in GPT format. If you are facing issues with UNMOUNTABLE_BOOT_DEVICE, I would suggest you to follow the Microsoft article on
Bug Check 0xED: UNMOUNTABLE_BOOT_VOLUME.


Hope it helps.

Let us know if you got the help you needed by clicking ‘Yes’ or ‘No’.

Roohi Taj S

Microsoft Community - Moderator

 

Corruption or Data Loss Checker for HDDs power-off

yes,

if you had data loss it would set the disk to dirty and ask to do a disk scan on startup