Intel Adapter R not present in this computer

Hello,

This is Sardhar, from Saudi Arabia. Recently my HP Desktop nh28201 undergone a virus attack and my Kaspersky made something wrong and resulted my PC does not connect to the internet either LAN or Wireless (I have wireless also in my PC). I am using Windows 7 Ultimate 32-bit. The PC does not have an IP Address and always identifying network and showing error message "Intel R adapter is not present". Please help me by providing me the said adapter and required drivers to be installed. Thanks in advance. Sardhar, Saudi Arabia.