Within a blink of an EYE as i was trying to ADD ANOTHER user to my PC with an unlimited access, my own access rights were deleted.
When I log in with my user account, my access rights as an administrator is restricted. I can’t install, do a system restore e.t.c. when I boot in safe mode, but can’t log in as my normal user, just as a GUEST. The alternative user is the administrator option. I tried it logging in with my normal password, but gives an error. Invalid password.
I got the PC about 1 year ago with windows XP professional already installed. So it came without any XP CD's.
I have BACKED up all necessary data on the System.
Hardware on the system Cd/DVD writer drive. Unfortunately the system does not have and floppy disk drive, so am not able to use the reset disk procedure.

Please kindly assist me
Did you get a restore CD or is there some kind of system restore partition? WHat make and model?
You may need to o buy an XP CD in the near future, or at least borrow one to attempt a repair installation.

This is the second post like this this weekend. You may want to search the forums. Also one post is enough to help resolve the issue and avoid confusion.