Enable administrator account in Windows Vista

To enable administrator account in Vista to get rid of annoying UAC(User Account Control)
The steps are:

*Click on start menu
* Type "cmd" on search bar
* Select cmd, right click and select "Run as Administrator" option
* Now in cmd prompt
    type: 'net user administrator /active:yes',
    then press enter
Now you have activated the admin account.

To disable

* Just type: 'net user administrator /active:no'
* press enter

Know how long your computer is ON

For Windows Vista and Windows 7

Open Taskmgr(Press Cntrl+Alt+Delete or Cntrl+Shift+Esc)

Click on the Performance Tab

On the right side under System see Up Time

For Windows Xp

Open Command Prompt(Windows +R then write cmd and press enter)

Write systeminfo and press enter

See the up time

Check Activation Status of Windows 7 & and Windows Vista through command prompt

Enter Windows +R key

The run box will appear

Type cmd and then press enter

In the command prompt write slmgr.vbs -dli

Press enter and then wait for some time.A window will pop up showing the License details