My computer only have standard user account

[Guest]

my computer only have standard user account, and I try to change the account type from control panle. but the button OK not allowed to click

need help

 

[saran008]

Boot into safe mode!

Go to Start, then Run, and type in

control userpasswords2

and press Enter.

Select User> properties > Group Membership Tab > Others > Select user type.

OK. Restart