Windows 10: D:\ is not accessible, The volume repair was not successful

Hi Microsoft Forums,I went to do an inplace upgrade from Server 2022 to Server 2025. Everything appeared to be just fine but when the server came back up, I can no longer access the D:\ drive for some reason? Giving me the following error below. Anyway, I can fix this without having to wipe the whole server? This D drive is a ReFS. I tried to repair the drive with CHKDSK /F /R D: but it says the type of file system is REFS and doesn't need to be checked. This is a HP Gen 9 ProLiant Server

:)

 

D drive is showing, but access denied.

Thanks for reaching out! I'm an Independent Advisor and a Microsoft user like you.

To resolve the "access denied" issue on your D: drive in Windows 11, follow these comprehensive steps to diagnose and fix the problem. These steps include taking ownership, running CHKDSK, and modifying the registry.

Step 1: Take Ownership of the Drive

1. Open Command Prompt as Administrator:
   
   • Press Windows + X and select "Windows Terminal (Admin)" or "Command Prompt (Admin)".
     
2. Take Ownership:
   
   • Type the following command and press Enter:
     
     
   • This command will recursively take ownership of the D: drive, granting your user account the necessary permissions.
     

Step 2: Run CHKDSK

1. Open Command Prompt as Administrator:
   
   • As in Step 1, open the Command Prompt with administrative privileges.
     
2. Run CHKDSK:
   
   • Execute the following command:
     
     
   • Explanation of parameters:
     
     • /f: Fixes errors on the disk.
       
     • /r: Locates bad sectors and recovers readable information.
       
     • /x: Forces the volume to dismount first if necessary.
       

Step 3: Modify the Registry to Display the Security Tab

1. Open Registry Editor:
   
   • Press Windows + R, type regedit, and press Enter.
     
2. Navigate to the Explorer Key:
   
   • Go to:
     
     
3. Check or Create NoSecurityTab:
   
   • Look for a DWORD entry named NoSecurityTab.
     
   • If it exists and is set to 1, right-click on it, select "Modify", and change the value to 0.
     
   • If it does not exist, create it:
     
     • Right-click on the Explorer key, select New > DWORD (32-bit) Value, name it NoSecurityTab, and set its value to 0.
       

Step 4: Check Disk Management

1. Open Disk Management:
   
   • Press Windows + X and select "Disk Management".
     
2. Check the D: Drive Status:
   
   • Locate the D: drive and check its status.
     
   • Look for any errors or unusual statuses (like RAW). If the drive shows as RAW, it may need to be formatted, but only consider this as a last resort due to data loss risks.
     

Additional Tips

• Update Windows 11:
  
  • Ensure your system is up to date by going to Settings > Windows Update and checking for updates.
    
• Use Third-Party Tools:
  
  • Consider using third-party disk management tools like EaseUS Partition Master or similar to diagnose and repair disk errors.
    

Important: Backup Data

Before proceeding with any major changes or repairs, ensure you back up any important data from the D: drive if possible. Data recovery services should be considered if you suspect severe disk corruption or hardware failure.

If none of these steps resolve the issue, the problem might be more complex, potentially involving hardware failure or severe file system corruption. In such cases, professional data recovery services may be necessary.

Please do let me know if the method I suggested works for you or if you need further assistance.

 

Command Prompt to Repair Disk

No drive was recognized. I assumed to leave it on D: and this is what it says:

D:\>bcdedit /enum
The boot configuration data store could not be opened.
The requested system device cannot be found.

D:\>bcdedit |find"osdevice"
'find"osdevice"' is not recognized as an internal or external command, operable program or batch file.

- - - Updated - - -

So I went ahead and proceeded with zbook's steps. I've pasted the steps I'm now stuck at. I don't have any volumes that display RAW as per step #21, so I don't have a drive letter to enter for step #24.

21) type: list volume
(look in the column Fs for any volume that displays RAW instead of NTFS)
22) type: list partition
23) type: exit
24) type: chkdsk /f /r G: (change G to the drive letter of the volume displaying RAW)
It may display "The first NTFS boot sector is unreadable or corrupt."
This may then cont the RAW volume to NTFS.

 

Recover deleted volume C and D

• My device is MI notebook pro.
  
• By prssing 'Windows can't be installed on drive 0 partition 1 (Show details)' gets same error message
  

Actually there was 2 partition in drive C and D, C has windows files and D has my private data..

One day an update came and i downloaded and it showed to restart the system..

I restarted.. then it stucked in repairing blue screen.. i tried every it showed : uninstall quality update, uninstall feature update, restore, repair..(it was asking frequently for bitlocker keys) it only showed to reinstall windows..

Then i created a bootable pendrive and tried to install it in the C drive partition, then it showed an error saying something like : you can not install windows in this disk space, bitlocker encryption is there...

Then i searched alot to decrypt it with key.. but all tutorials showed doing this in normal windows gui..

Then i got this YouTube video (),

and i followed his steps in cmd..

1. Diskpart
   
2. List disk
   
3. Select disk 1
   
4. List volume
   
5. Select volume 1
   
6. clean
   
7. Create part pri
   
8. Active
   
9. format fs=ntfs label=surface quick
   
10. assign letter=c
    
11. Exit
    

Then turned off and then on then tried to reinstall.. then this screen came..



it shows only one partition.. with full free space..

(My thought was it will only clean volume C, and creat new C and install windows in it.. no problem to volume D, where very valuable data are there)..

The guy in the video converts this to gpt by formatting it.. but i was afraid to do that.. i stoped there.. didn't formatted.. hoping i can recover my data on volume D

Note : in another thread here i saw a moderator said : " diskpart clean" command is a simple delete command.. we can undo the deletion.. (Redirecting)

This is literally what happened..

And i want my data on volume D back..

And i hope you can help me.. thanks