Accounts :: Main User Account Type Changed To Guest - Can't Change Back

how to change my account type back to administrator but with no luck.

I have been running this laptop as my main machine for a few months now with no problems, however, I realised I had a problem when I wanted to change some networking settings on Friday when the UAC said I needed admin privileges and wouldn't let me enter a password or click "Yes", hence not allowing me to go any further.

I went to control panel > User accounts and saw my account type has been changed to Guest.

Now I have thought long and hard and I have not changed or had any need to change my account type to guest, nor has anyone else had access to my laptop, so I can only assume this has been done in the last week or so during a Windows update.

I'll tell you what I did to try to resolve this below:

First of all I tried to enable the hidden administrator account while in my account by running command prompt as admin (and then entering net user Administrator /active:yes) but as I don't have admin privileges I couldn't even open the command prompt so I couldn't get any further.

After reading around the net and this forum I found this thread and gave it a try. After restarting the laptop and booting into safe mode I was expecting to see and Administrator account next to my account at the log in screen, however, there was only the administrator account to choose from, so I clicked it and it went through the first time initialisation of the account and then showed me the start menu, I then went to run the command prompt as admin and it worked, I entered net user Administrator /active:yes which worked with no problems. I then went to the user accounts in control panel to "Manage other accounts" but my usual account was nowhere to be found. So I thought I'd restart the laptop and see what happens out of safe mode.

When it restarted I was still only presented with the admin account, so I logged in to disable the hidden by entering net user Administrator /active:no in the command prompt run as admin and then restarted.

After restarting again I was expecting to see my account but was still presented with only the admin account, but when I clicked on it it said it was disabled and I was completely locked out of windows.

Luckily I created a restore point so I managed to restore my settings, and was back at square one.

After a bit of testing it seems my main user account is being removed when I enter safe mode, but do nothing else. Why entering safe mode is removing my account.

I am at a bit of a loss as I can't seem to activate admin privileges on my account, but if i try to fix it I lose my account completely.