Question details: It tells me that the cd rom is no more in my pc and the control panel disappeared from the the registry. It tells me that the the administrator has change no access to the registry get in contact whit the administrator. I can not install windows because I don't have a Windows CD-ROM.

Answer:

We wrote some article about the best antivirus software available on the market:

Best Free Antivirus
Best Antivirus 2007

We suggest to install one of those software and clean your computer.

It is very possible that you will need to reinstall your operating system because the virus deleted some files. You can borrow a Windows CD from a friend.