Which type of user account are you using? Administrator or Limited User account!!

To see which type of account you are using, move your mouse pointer over the clock on the bottom right of your screen. Right-click the clock, and then click Adjust Date/Time.

• If you're using a Limited User account, you will get a message reading "You do not have the proper privilege level to change System Time."
• If you are using an Administrator account, a small window will open with controls you can use to change the time and date on your computer.