Well heres the trick which can use to prove that Windows XP is not at all defended as multi-user operating system. Some tips and trick for system registry from any account to having access the system registry puts you in to the administrator account. This is what you have to do:
Click on start>run(win key+r)
Then tpye “regedit” there, this opens up the registry editor, now goto
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Winlogon
Then set “AutoAdminLogon=”1”
