Jun 23, 2009  Login failed and only Admin can connect – Learn more on the SQLServerCentral forums. Only administrators may connect at this time. Also is related to one Database or the SQL Server itself. In some configurations, SSMS will attempt to make several connections. Multiple connections will fail because SQL Server is in single-user mode. You can select one of the following actions to perform. Do one of the following. Connect with Object Explorer using Windows Authentication (which includes your Administrator credentials).

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I have seen some posts on this problem, but none touch on all of the issues or offer a viable solution.Here goes:The computer has a linked microsoft account (set up with an email address and password), which we will call 'Tom' from this point on. This account AT ONE TIME WAS administrator with full control. It is now showing up as a guest. As of right now there isno available administrator account to be able to make changes, do elevated command prompts, etc.

When a User Account Control box comes up, it says to log into an admin account, but doesn't list one, and the OK box is greyed out.Sounds easy??? Here comes the crazy parts.I am UNABLE to activate the built in admin account through this Tom account for the obvious reasons of not having admin rights for any UAC prompts or elevated command prompt. Registry states that this built in account is already on ('10' in the hex code)Rebooting into safe mode to get the admin account CAUSES THE TOM ACCOUNT TO DISAPPEAR PERMANENTLY!!!!I can make changes during this time, but suddenly the Tom account no longer shows up as an account.Upon rebooting the computer into normal mode, the Tom account has now permanently disappeared and the 'safemode' admin account is in its place as a brand new 'Hi' account.At this point I can create as many accounts as I want with ANY type, but I can never get windows to recognize the Tom account anymore. Creating a new linked account with the same email address causes windows to state that an account on the computer alreadyexists with this email address.but it is not listed ANYWHERE. The user files are still on the computer in the Users folder.To recover from this state, I can Restore the computer to a point 2 weeks ago, and my Tom account RETURNS, but unfortunately it is still guest.I have tried the account repair tool using the Tom account, but obviously it prompts a UAC and doesn't allow me to continue. I have not tried running that tool in safe mode or upon reboot with the admin account but the Tom account missing.

But I feel thatwon't accomplish anything since Tom is no longer seen as an account.This is not my computer. The only way I noticed this issue was attempting to repair a webcam that is 'stuck on'. Yes, this could be an indicator of a deeper problem, or suspected foul play.

The webcam turns on as soon as windows loads.?!? Scary!!The owner had a friend 'IT professional' work on this computer before these issues arose and I dont want to jump to conclusions about crippling the computer and spying through the webcam (which is now covered with tape).although it is really coincidental.As of right now, re-installing windows is a last ditch solution. I will not take the easy way out without first bouncing around some ideas. I am EXTREMELY computer proficient and have tried most of the normal solutions (net user /add, administrator enablethrough command prompt, safe mode, Users control panel is unusable due to UAC).This is driving me nuts.I can't wait to see some great ideas!Tom. I can't imagine how it would disappear.

Hopefully all your files are still safe underC:UsersTom (or whatever).A few different things can happen depending on if the account existed locally before getting joined (which in my own opinion is a more reliable way to go). For example my username home folder is shawn000 because it uses digits if you first make an MS account.But that doesn't happen if the account was local first and then just got 'connected' to MS account later. But then you also have some weird things where you have both a local and an online account if you were to go explore under the MMC console of actualusers on the PC.Honestly what would probably be the best is to get into the built-in administrator account and create a new local account, with admin rights, that you can use without being in safe mode. Basically just one to yourself. On my system, that's my onlyaccount. I just rely on UAC instead of actually using a limited account because honestly, does anyone truly run under a limited account every day and not go insane?But I digress. Just got your new account setup as a local account.

Boot up and login, get it all configured and drag your files over. Then later if you want to you can connect it to MS.

Shawn 'Cmdr' Keene Microsoft MVP - Windows Insider CmdrKeene.com tweet me: @LtCmdrKeene Microsoft MVPs are independent experts offering real-world answers. Learn more at mvp.microsoft.com.

Hi,Since you're already using an administrator account and you're still having an issue with the administrator rights, we would to like to ask for more details to further isolate your concern:. Are you using a company PC that has a System Admin? If yes, we suggest that you contact them so that you can have your Admin rights again. If you're using a personal PC, how many administrator accounts do you have?. When you're trying to access C: drive, are you getting any error message? If yes, kindly tell us the exact error message.Meanwhile, try performing a full scan on your PC using your antivirus software. Sometimes, there are variety of malicious programs that can block administrator privileges.We look forward to your response.

Unfortunately it looks like we have no resolution with those suggestions. It's weird.I did try and create a Kiosk mode but never made it come into effect.

This problem only arised recently and I don't know if the events are related.Notices below.Hi,Since you're already using an administrator account and you're still having an issue with the administrator rights, we would to like to ask for more details to further isolate your concern:. Are you using a company PC that has a System Admin? If yes, we suggest that you contact them so that you can have your Admin rights again.I'm on a Home System. If you're using a personal PC, how many administrator accounts do you have?Just one account and it's admin. When you're trying to access C: drive, are you getting any error message? If yes, kindly tell us the exact error message.No problemsMeanwhile, try performing a full scan on your PC using your antivirus software. Sometimes, there are variety of malicious programs that can block administrator privileges.Done, no errors foundWe look forward to your response.

Thank you for letting us know.We would like to verify, can you still run the Command Promptas an administrator? If yes, try to activate the (hidden) administrator account on your Windows 10. Here's how:1. Open Command Prompt and run it as an administrator. (Right-clickCommand Prompt and choose “Run as administrator”.)2.

Type the following command: net user administrator /active:yes. There will be a message that the command completed successfully.3. Restart your PC.4. Once you restart your PC, you will see the Administrator account.Once you're logged in using the Administrator account, try to change the time zone and check if the same thing will happen.Note: Using the Built-In Administrator is not advisable to be used normally as it is designed for troubleshooting purposes only.To deactivate (hidden) administrator account on your Windows 10, follow these steps:1.

Using the regular (administrator) user account, open Command Promptand run it as an administrator. (Right-click Command Prompt and choose “Run as administrator”.)2. Type the following command: net user administrator /active:no.

There will be a message that the command completed successfully.3. Once you restart your PC, the Administrator account will not show up anymore.Keep us updated with the result. Thanks for the update.In this case, let's try activating the (hidden) administratoraccount using the Command Prompton Windows Recovery Environment (WinRE).To make the Windows Recovery Environment start automatically, there should be two consecutive unexpected shutdowns that occur within two minutes of boot completion. To do this, once you reach the sign in screen, press the powerbutton.

Do this twice.Once you're on the Windows Recovery Environment, choose the option Troubleshoot.Under advanced options, select Command Prompt. Then, enterthe following command: net user administrator /active:yes. There will be a message that the command completed successfully.Once you restart your PC, you will see the Administrator account.Reminder: Using the Built-In Administrator is not advisable to be used normally as it is designed for troubleshooting purposes only.To deactivate (hidden) administrator account, just follow the steps we provided last November 6, 2017.Let us know if the steps above works for you. Good news and bad news:Good News: I was able to get the command to workBad News: It didn't reveal another administrator (on the login page or in system/users). Am I looking in the right place?Slightly bad news: Had I read your instructions properly I would have.right clicked. command prompt to start with and not had any of the problems I had in the first place. Apologies for wasting your time on that.Now that we know there is no additional user, the question does present itself: why can't I reset my timezone.

I had no idea it would impact me the way it has, but it does. Thanks for the screenshot.Since you're still having the same issue even after activating the (hidden) administratoraccount, we suggest that you adjust the User Account Control (UAC) settings on your PC.

With UAC, apps and tasks always run in the security context of a non-administrator account, unless an administrator specifically authorizes administrator-level accessto the system. Also, UAC can block the automatic installation of unauthorized apps and prevent inadvertent changes to system settings.Here are the steps on how to adjust the User Account Control settings:.

Go to Control Panel. Click User Accounts.