Windows 10: Administrative Access Issue

Hello,I am a Windows 10 user. On my PC I am set as the Administrator. I am the only one who uses this PC. I bought it refurbished many years ago but had no problems with it until recently. I was attempting to back up my files to my external hard drive and while copying my pictured folder I got the message "Error 0x80028CA0". After searching on this site, the suggestion to correct the error was to open the command prompt and use SFC /scannow & then DISM /Online /Cleanup-Image /RestoreHealth. However, I was unable to use either of these commands. Using the SFC /scannow command

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Settings can't be opened using the built-in administrator account


Hello,
Unfortunately I have the same issue as Dabz from upgrading win7 to win10.
I've tried opening settings using all the suggested methods and it will not load using my account with Administrator access nor the built-in Administrator profile. I also tried other methods not listed such as using Run. Control panel is just a stepping stone to add users in Settings.
I'm also having explorer.exe issues, which I believe is preventing Settings from loading.
Using cmd (Admin) I successfully created a new user profile [and granted admin access also using cmd (Admin)], however win10 will not allow this account to log on. win10 does not list this new user within control panel but it does in the start menu. win10 will not allow to log in or switch to the new account via the start menu either.
I can access settings in Safe Mode but this will not allow me to create a new account.
Any help/suggestions will be greatly appreciated.
Cheers

 

"Built-in administrator" still denied access to many apps and functions

Hi Andy,

• What is the exact error message you are getting when you try to open apps?

I understand your concern about accessing the operating system. I apologize for the inconvenience caused to you, I realize this may be frustrating. We are here to help you in resolving the issue.

This issue might have occurred due to corrupted system settings/ system files. Try the below troubleshooting steps and check if it helps.

Method 1: I suggest you to check if Built-in Administrator account is enabled. If so, try to disable.

Step 1: Follow the steps toDisable Built-in administrator.

• • Press Windows + X key together on your desktop screen.
    
  • Click on Command Prompt (admin) to open
    Command Prompt.
  • Type the following command and hit Enter:
  • net user administrator /active: no (Check for the spaces)
    

Restart the computer and check with the status of this issue.

Step 2: Also, I suggest you to refer to the below thread replied by
Marilyn O on November 22, 2012 as this suggestion has helped many others and check if it helps you as well.

App can't open with built in administrator account


Hope it helps. Get back to us with an updated status of this issue for further assistance.

 

net user administrator /active:no keeps saying access denied.

Hi Rebekah,

It's possible that you're not using an elevated command prompt, causing the Access Denied error. We suggest following these steps to properly disable the built-in administrator account:

• Right-click the Start button.
• Choose Command Prompt (Admin).
• Copy and paste net user Administrator /active:no and press
  Enter. If the command isn't successful, please post a screenshot so that we can study it further.

Let us know if you're able to hide the administrator account after following these steps.