Bd 2010 Ts : Install Problems

hi,


sorry , i am not good in english enough.


i faced a problem with my bitdefender total security 2010 , with update.


i have windos 7 as OS .


bd was fine until yesterday.


first i can't start an update


then i update my bd and the update start


then bd asked me to reboot the PC so i did


then the update was disabled and i can't update


(bd tried to solve problem but it can't)


then i removed the bd and some thing wrong happened ( i remove from uninstall program\ control panal)


i used the CD to reinstall bd ,


but i can't


please help me to solve my problem and save my time too.


thanks