yes we need to install antivirus apart from windows defender
This means your anti virus software is not working properly . You need to reinstall your antivirus software or install a new one.
You can get it if you do not have the latest antivirus software and your windows software is out of date.
No. That you have to get seperately
There are many companies that provide free antivirus software downloads. Avast, AVG, Avira, and McAfee are a few examples of who provide the free software.
Windows Antivirus 2009 is a virus. Whatever you do, DO NOT INSTALL OR DOWNLOAD IT. Use a trusted program such as AdAware or SpyBot to track down malware, and AVG for viruses. If you do install Windows Antivirus 2009, it will block the Windows Installer Service, preventing you from installing a real antivirus on your computer after the fact, making the program incredibly difficult to remove.
Yes. but install avast! antivirus 4.8
Most newer laptops come with an antivirus program installed standard. My laptop (a Dell Studio 17 running Windows 7) came with Windows Defender/ Windows Firewall and McAfee antivirus.
Windows Defender is a software which is from Microsoft. Specifically, it is anti-spyware software, which protects your computer from spyware and malware infections. In Windows 8, Windows Defender has been upgraded to an antivirus.
A person can purchase an antivirus for Windows Vista at a store that sells various computers and computer programs or online. Some online sites that sell antivirus software for Windows Vista include eBay and Amazon.
Of many popular antivirus and firewall software, Windows 8 ranked fifth.
A person can find free antivirus software for Windows XP in several places. Some of these places include CNET Download, Comodo, Avira, Avast, and Kioskea.