If your computer is set to classic view "start menu", go to "control Panel" and expand the "administrative tools". Otherwise, the management group is in the category of "Small icons" in the control Panel.
Double-click the node of the "computer Management" snap-in and expand the "Local users and groups". In the Name list in the right part of management console, expand the Users folder. Right-click the user account "Administrator" in context menu choose "Properties". Remove the flag next to "account is Disabled".
In the field "Full name" record not matching the name of the owner of the computer that you specified when installing an operating system. Click Apply and OK, restart the computer and login under the new account.
Management console you can invoke another method. Right click the mouse on the icon "My computer" invoke a drop-down menu and select "Manage". In the left part of the console snap-in, click "Local users and groups".
You can also disable the "user account Control" (UAC). In the "control Panel", expand the "user Accounts". Select "Change settings..." and adjust the slider to the bottom position. The system will treat any user as administrator.
There is another way. In the window, run programs, enter secpol.msc and right click on the icon to run the command. Tick "Run with administrator". Expand "Local policies" and "security Settings".
In the policy list, locate the "Accounts: state Administrator". Click on it right button, select "Properties" and switch the status to "Enable".
If your computer has Windows 7 Home Premium or Windows 7 Home Basic, from the start menu, click Run and the window of run program type cmd. Right click on the command prompt icon and select "Run as administrator".
Enter the code net user Administrator /active:yes. Confirm by pressing Enter, and restart your computer. Log on under administrator account.
Advice 2: How to become a computer administrator
A system administrator has almost unlimited rights and can perform various system operations. There's a special algorithm to become an administrator on the computer to the common user.
Click the "My computer", right-click and select from the menu the string "Control". In the opened window go to "Local groups and users". Click on the arrow next to the left mouse button to display the string "Groups" and "Users. Scroll down to "Users" and right-click on your profile.
Go to the tab "Properties" in the menu that appears and select "group Membership". In the group "Administrators" click "Add" and click OK. Restart the computer, the adopted changes came into force. Now your profile will have administrative rights.
Use an alternative method of obtaining administrator privileges, you can grant rights to an existing profile or create a new one. Go to control panel and PC through menu "start". Go to "Accounts and users" and click add and remove accounts.
Select your account if it is available on the PC and activate the item "Change account type". In the window that appears select the account type "Administrator". Save the changes, and they will immediately take effect, giving your profile the rights of the organizer.
Try to become an administrator on the computer differently. This method is suitable in case if you still don't have an account on the computer. Use add and delete accounts and users and activate the checkbox "create an account". In the window that appears, specify the account name and immediately give it administrator rights. Please note that this action is possible only in case, if you are already admin before that gave all users the ability to change their rights.