Help me? I can not open or get access to many applets in the Control panel
i have tried fix problem since dad gave me used advent laptop vista home basic. in classic view, these applets in control panel can`t open or access to: user accounts, windows update, network , sharing center, personalization, backup , restore center, parental controls, default programs, power options, , system. when try open of them, uac-window, press yes, uac goes away , nothing happens. for others, if i`m lucky, i`ll see window-frame half second, then...poof!...gone... i have tried deactivate uac via system configuration>tools, didn`t work... as far know, there 1 user account. if log off user or choose change user, when "welcome-screen" appears, there "frank" user account option. no administrator or guest login. is possible that, reason, don`t have sufficient access rights, although there no (visible) administrator user account? i wrote in cmd.exe, , found called cacls , icacls. , if understand correctly, can type can give me access of user ac