Virus attacks on computers can have a fatal and dangerous affect. If a computer is infected with a virus it is important to get it removed so the data information and various other programs associated with the operating system. Effective on-time detection of the viruses in the computer can ensure smooth operation of the computer without any damage caused by the virus. Quite frankly we do not want our computer to get infected with a dangerous computer virus so it can wreak havoc on our computer system and put all the important and confidential data at the risk of getting compromised. Therefore it is important to have reliable and effective antivirus software. This can help the user combat these threats and have a healthy and fine tuned computer working smoothly. Also antivirus software’s nowadays help in avoiding and defending against threats such as malwares, adware’s, spywares etc. If you are experiencing a slow performance of your computer then your computer might be infected with various different type viruses and other malicious programs. In such cases one should have antivirus software’s that are robust and effective against cyber attacks. It is a known fact that people interested in making money using shortcuts can participate in illegal activities. In such cases cyber scrims are one of the most sophisticated and dangerous forms of crimes. Usually people with a certain skill set in hacking and related work practice infiltrating the private data and information of people and using it for their own selfish interests. These types of people may use viruses to infiltrate a person’s computer to get access to business and personal information. In order to protect the computer and the data the users have a rising demand of robust antivirus software. Nowadays good antivirus programs have thorough and in-depth scanning engine that detects viruses during a thorough scan and removes them. Also users can benefit from options like custom changes in scan settings to get desired performance and results from their antivirus software. These antivirus software’s provide effective protection against Trojans, viruses, spywares etc. These software’s are designed to detect and remove these virus programs, at present there are various branded antivirus products available in the consumer market. Some these brands are Trend Micro, McAfee, Avast, Avira, Bitdefender, AVG, Symantec Norton, etc. These antivirus software’s receive regular updates as per their own schedule. These antivirus software’s might have common features like e-mail scan, antivirus, website-protection/shield, firewall, custom change of scan, in-depth heuristic scans etc. Amongst these antivirus programs are Avast and Bitdefender antivirus softwares. Both the antivirus software’s are known to have a robust and effective scan-engine, these antivirus software’s receive regular updates to avoid, detect and remove cyber threats that make attempts to infect the computer systems. These antivirus software’s have a user friendly easy to operate user-interface. Both Bitdefender and Avast antivirus are known for their effective performance and light-weight smooth operation in the background. The ability of antivirus software’s to protect and safeguard the computer has made them immensely popular globally. These antivirus softwares can also develop technical problems. In order to ensure their optimal performance and systems security it is important to get the technical problems resolved. In such cases it is advisable to contact professionals who are experienced and certified to resolve the technical concerns.