1.    13 Jan 2016 #1
    Join Date : Jan 2016
    Posts : 3
    Windows 10

    User Account changed from Admin to Guest

    Dear people of the Tenforums,

    I could use your advice.

    On Saturday I decided to give new Windows 10 (it picked Home Edition by itself) a try. Previous version was Windows 7.

    After a flawless install I have seen that something on my C: partition is using a lot of disk space. It was Windows.old file which I have successfully deleted by using Disk Cleanup. But last night I see Windows.old has reappeared back, which is quite a surprise, so I wanted to delete it again.

    But now UAC blocks my every effort because User Account "doesn't have Administrator permission". The Yes button in the UAC is greyed out, I can only click No which leaves me where I was. The Account is reduced to what appears to be Guest. Naturally, I ended up more or less completely cut off from making any serious alteration to anything. I can't delete folders of importance, change account status (back to Admin), nothing ... I can only use the computer ...

    Another issue is that my otherwise empty D: partition has 3 files (one of them is named "WindowsImageBackup"), they together take more than 100G of hard disk space. As a Guest it's impossible to open or access them to see what's in them, let alone delete them. Does anyone know what they are?

    I know that Win 10 is supposed to delete Windows.old by itself after 30 days (I hope "WindowsImageBackup" too), but is there any way for me to solve the issue of account status - to return to Admin - and do it by myself alone as soon as possible?

    It all seems like some bug or something, it's quite frustrating and I tried to do a Repair Install, but as a Guest you're pretty much stuck.
    Last edited by Gorkee23; 13 Jan 2016 at 14:18.
      My System SpecsSystem Spec

  2.    15 Jan 2016 #2
    Join Date : Nov 2015
    Posts : 1,648
    64bit Win 10 Pro ver 1607 Build 14393.105

    Hello and welcome to the Forums!

    I suggest you try to enable the built in administrator account, log out and then back into the new admin account and then see if you can change your user account back to being an administrator account.

    Here are the tutorials you will need to do this:

    Administrator account - Enable or Disable in Windows 10

    Account Type - Change in Windows 10

    Notice that there are several options for doing each change - you may need to try more than one before you find the one that works for you.

    Hope this helps!

      My System SpecsSystem Spec

  3.    17 Jan 2016 #3
    Join Date : Jan 2016
    Posts : 3
    Windows 10

    Dear user philc43,

    Thank you for the reply.

    I have managed to solve the problem:

    1. Enter the Safe Mode (it turns on in-built Administrator account automatically)

    2. Open Command Prompt and type: net localgroup administrators UserName /add

    3. Substitute UserName with the actual user name and press Enter.

    (Close Command Prompt, Log-Off as the Administrator to exit Safe Mode. Sign In with your personal account to return to Normal Mode again.)

    That's pretty much it, further details can be found here: Option IV (Section 6).

    First it took me forever to figure out how to enter Safe Mode, because Windows 10 have that altered completely.
    Then I spent an hour and a half to exit the damn Safe Mode: one can reboot as much as he wants, system is stuck in there. Luckily I logged off as Administrator and system shuts the Safe Mode down to switch back into Normal Mode.

    Last edited by Gorkee23; 17 Jan 2016 at 20:07.
      My System SpecsSystem Spec

  4.    18 Jan 2016 #4
    Join Date : Nov 2015
    Posts : 1,648
    64bit Win 10 Pro ver 1607 Build 14393.105

    Hello Gorkee23,

    Glad you got it sorted, thanks for describing the process that worked for you because it will be a great help to others in the same situation.

    I had not come across the problem that safe mode persists on reboot so that was interesting.

      My System SpecsSystem Spec

  5.    22 Jan 2016 #5
    Join Date : Jan 2016
    Posts : 3
    Windows 10

    No problem.

    After I returned to Normal mode I had two accounts: one was mine, the other was Administrator.

    You have to remove or shut down the Administrator account afterwards.

    To see how this is done, I searched the Internet, that information is not too hard to find.
      My System SpecsSystem Spec


Similar Threads
Thread Forum
How to log in to the guest account?
Hello: I have successfully activated the hidden guest account by using the net user /guest:active command from an elevated command prompt. However, the account does not appear at the bottom left of my login screen along with the other accounts...
User Accounts and Family Safety
Existing child account - how to make a new Admin account
Hi. I'm getting a bit confused about how to set up child's laptop with me as an Administrator. I've read a few internet articles but they all seem to start by assuming that you have set up the computer in your own name first and are then adding a...
User Accounts and Family Safety
Domain admin account as built-in admin account
I just upgraded two brand new pc's from Win 7 to Win 10. Computers were already added to the domain in Win 7 and I was logged into the domain administrator account when I did the upgrade to Win 10. Now when I am logged in with the domain...
User Accounts and Family Safety
Solved Problems in User Account, not appearing in Admin Account (store, sfc)
I have not found anything like my problem on any forum or thread. In my Administrator Account the Windows Store opens and I can install Apps. I expected those same Apps I just installed to appear in my User Account, they did not. Both my Admin and...
User Accounts and Family Safety
Stuck with a guest account - can't access admin account
I am trying to change my user account from guest to admin as many things aren't working right. I have tried cmd -> netplwiz and it asks me for an admin password, but gives me no box to type it in. Even if it did, I don't know what the admin...
User Accounts and Family Safety
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 17:04.
Find Us
Twitter Facebook Google+

Windows 10 Forums