This is a common problem!!!!!


steps for RegEdditor Enabling

Start->Run->
Type gpedit.msc
go to
User Cofiguration->Administrative Templates->System
Now in the right hand panel set "Prevent access to Registry editing tools" to not configured or disabled.......This will enable registry editor ...Once this is done


Steps For TaskManager Enabling:-

Start->Run->
Type gpedit.msc
go to
User Cofiguration->Administrative Templates->System->ctl+alt+del Options
Now in the right hand panel set "Remove Task Manger" to not configured or disabled.......This will enable TaskManager ...Once this is done