oracle 9i installation

[raja_puligadda]

The headache is still continuing.
this one time please listen to me.
after installation when i am restarting the os,
the taskbar is disappeared,and some of the options like 'paste','send to'
are disabled.Even some of the .exe files like power dvd,windows media player and the sound drivers are not working.
The os is working entirely in a nonsence way.
my friends saying that my computer is virus attacked.
I had formatted the drive 5 times still now.
I dont know what went wrong since the software has been downloaded from oracle website,and i had checked the product type also.
tell me what i had to do?
And thanks for the reply given by u people for my previous question
please take me out of this guys.
i am wasting so much valuable time on it.
Thank you