After your computer has been infected by a virus, it is very much important that you do not connect it to the internet for the meantime. Majority of the viruses are made to collect sensitive information of the victim such as personal and financial information. Now, if the virus has already collected the said information, it will then send it to the creator but since you are not connected to the internet, there is no way that the virus will be able to send the information to the intended recipient.
Your computer is very much vulnerable to all types of computer threats especially if you do not have protection against such threats such as installing antivirus software and a firewall. It will also help if you will install anti-adware. Anti-adware software does scan for a malicious programs installed on your computer that also sends out your information to the hacker over the internet.
The very first thing that you should do when you think that your computer has a virus is to disconnect it to the internet. To do this you will need to unplug the LAN cable at the back of the computer to ensure that you really are disconnected from the internet. Once you have disconnected your computer from the internet, you should immediately scan your computer for viruses and other threats using your preferred anti-virus software. This software will scan for malicious files and programs saved on your computer and it will also try to remove them. Once the antivirus software has finished scanning your computer for viruses you may then be able to connect it again to the internet. It is also recommended that you update your antivirus software so that it may have the latest information on how to combat new threats to your computer system.