You need to know the admin account title and password. On some versions of windows you can boot into safe mode by pressing the F8 key during O/S load, which defaults to an admin account.
Your account must be of administrators type, or you can use built-in Administrator account if does not have password. Or if it has one and you know it.
Under guest account you cannot do much, and of course you cannot get administrator rights. But if it's your personal computer you can cancel a administrator password using a special cd, for instance, NT Cracker. After you cancel the password you will be able to log on under administrator account without a password.
Log in as the Administrator then change the conditions of your user account
Administrator Acct
The first account you use is the administrators account.
A common way is to simply press Ctrl-Alt-Del at the log in screen.For Windows XP Home EditionThe administrator account in Windows XP Home Edition can only be accessed from safe mode.To log on as the Administrator1. Click Start, click Turn Off Computer, and then click Restart.2. Once your system begins to restart, press the F8 key to bring up the options menu.3. Use the arrow keys to highlight the Safe Mode option, and then press ENTER.4. When the "Windows Welcome" screen appears, click Administrator to log on.To add an administrator password, which helps make your computer more secure, click Start, click Control Panel, double-click User Accounts, and then click Change an Account. Under "Pick an account to change," click Administrator, and then click Create a password.For Windows XP ProfessionalUntil you set up a user account on your computer, you need to log on as the Administrator. For security reasons, you should create a user account for yourself and a user account for each person who may be using the computer.After you complete Setup, your computer restarts and the "Log On to Windows" dialog box appears.To log on as the Administrator1. In "Log On to Windows," type Administrator and the password you assigned to the administrator during Setup.Note If you do not see a place to enter this information, press CTRL+ALT+DELETE twice to view "Log On to Windows," where you can log in as Administrator.2. Click OK.If a message appears informing you that the system could not log you on, verify that CAPS LOCK is not turned on, and then retype your password.In general:All you have to do is to go onto control panel, click user accounts, press yours and it has a list saying what you can do , and you just have to click on , Change the account types to computer administrator. (This doesn't help if you don't have the authority to make yourself administrator.) CautionRunning Windows XP or other NT-based versions of Windows as an administrator makes your computer vulnerable to unnecessary security risks. The best practice is to use your Standard user account to perform routine tasks such as running programs, working on documents, and visiting Internet sites and use your administrator account only when you need to make changes to your computer's settings.
If there is one users on the computer, it is the password you use to log on. If you have multiple users on a computer, then one of them is the system administrator. Usually, this is the first account created, but you can find out by going to system preferences, and clicking on accounts. On the left hand side of the window, there will be a list of users, and under the system administrator it will say "admin." The password for this account it the system administrator's password.
You can log into your Gmail from any computer. You must log out from any gmail account opened. Then you have to put your details in it for the same.
To log on to a Windows 10 computer as an administrator, start by selecting the user account associated with administrator privileges at the login screen. Enter the password for that account, if prompted. If you're already logged in but need to access administrator functions, you can right-click the Start button and choose "Windows PowerShell (Admin)" or "Command Prompt (Admin)" to run commands with elevated privileges. Additionally, you can switch users by pressing Ctrl + Alt + Delete and selecting "Switch user."
The first account created on a newly install windows 7 isthe administrators account. There is no need to use another
It is your account that is made premium. You could log into your account from any PC that has the Minecraft client.
If a user receives a message stating that their account has expired while trying to log on to an Active Directory domain, it typically means that their account settings need to be updated by an administrator. The user should contact their IT support or system administrator to request an account renewal or reactivation. The administrator can then access the Active Directory Users and Computers tool to modify the account's properties and extend its expiration date.