I am unable to access the C drive. It says it is unable to display current owner

hard driveownershipuac

I am using a Windows 7 Ultimate OS, and my dad recently changed the setting in the sharing tab of my C drive to make it more private when I was using a shared network. Unfortunately, something he did made it so I can no longer access my drive. When I check the owner of the drive it says it is "unable to display current owner." The blue and yellow shield are on all the edit and security buttons making it impossible for me to click them. I have even tried reinstalling windows from my disk, but the computer says I am not authorized to do this.

Other things I have tried:
Using command prompt: takeown /f C:\ and then when that didn't work, C:\ /G everyone: F

I even set up the built-in administrator account, but the blue shields are on the buttons there too.

When I try to click on something with a blue shield next to it, the box flashes, but nothing opens.
When I try to open the C drive it says, "C:\ is not accessibly. Access is denied."

I do hope you can help, I am quite desperate at this point!

Best Answer

  • Follow these steps: (these are the steps that resolved Rose's issue)

    • Enabling the built in Adminstrator account via steps below this answer
    • After you enable the built-in Administrator, log off your current user.
    • Then log in to the built-in Administrator account.
    • Then attempt to disable UAC while logged in to the built-in Administrator account. (See Note 1)
    • After disabling the UAC, then reboot your system.
    • Boot in safe mode and change the folder or drive settings. (credit)
    • Reboot and confirm work. (See Note 2)
    • Disable the built-in Administrator account.
    • Enable Window's UAC.

    Note 1: Rose used method #2 from this site to disable UAC.

    Note 2: To be successful, the owner should be set to 'TrustedInstaller' with options to change the owner to one of the computers users.


    Steps to Enable the build-in Administrator account: (Source)

    1. Click Start, and then type cmd in the Start Search box.
    2. In the search results list, right-click Command Prompt, and then click "Run as Administrator".
    3. When you are prompted by User Account Control, click Continue.
    4. At the command prompt, type net user administrator /active:yes, and then press ENTER.
    5. Type net user administrator <Password>, and then press ENTER. Note: Please replace the <Password> tag with your password which you want to set on the administrator account.
    6. Type exit, and then press ENTER.
    7. Log off the current user account.

    Note: Disable the account when finish for security reasons.

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