I have a windows 7 laptop with the user "mydomain\boy" that cannot log in to the laptop. the error message is something like "User profile service cannot log in the user boy".

I then logged in with the domain admin account "mydomain\admin" and then went to delete the "mydomain\boy" from my computer > system properties > advance system settings > user profiles > settings.

I also ensure that the user is deleted from control panel > user accounts. I then also deleted the user folder c:\users\boy I also checked that the registry at this location HKLM\software\microsoft\windows nt\currentversion\profilelist\ and ensure that there is no entry for boy.

I followed http://support.microsoft.com/kb/947215 using the method 3 "fix it for me" but does not seem to do anything. (or i don't know how to use it).

AFTER EVERYTHING DONE ABOVE... Everytime i log in with a new user, be it boy, girl or anything other domain account (other than the admin account already created when I first logged in to begin the fix/break), it takes a long time, and when the "preparing desktop" goes away, it starts to exe cannot open error e.g. regsvr.exe etc.. file association problem with exe

QUESTION (phew finally..): Please tell me how to fix it? Thanks!