Antivirus Online

The free antivirus antivirus online are running entirely from a web browser, so no need to be installed on your computer, unlike traditional offline antivirus, which are installed and running permanently in the system. The free online antivirus is free because manufacturers use them as a platform to promote their products for payment, including a greater number of features and services.

Cloud Antivirus

A particular case of antivirus antivirus online are the antivirus cloud or the cloud, install a client on your PC but run on a remote server.

Operation

The free antivirus online are web applications that scan your computer to search for viruses, with the particularity that run from the browser, so you do not need to be installed on the PC.

Since the virus are generally oriented Windows operating system, as the UNIX-derived operating systems like Mac or GNU / Linux lack of viruses, free antivirus online assume that the user uses iExplorer so typically run as ActiveX or Java components, and can not work properly in other browsers.

The free antivirus online antivirus not intended to replace every Windows system offline to make it obligatory given the vulnerability of the platform to the virus, but should be considered a supplement that provides a second opinion and probably a database of virus signatures updated . They are highly recommended as a booster to increase protection but does not replace antivirus offline, since no resident runs but runs on demand.

Advantage

Consider the advantages of free antivirus online:

They are constantly updated. Permanent availability and can be executed at any time. Speed: running quickly using the browser, with little resource consumption. Compatible with other antivirus antivirus can use different online without affecting the other, and are compatible with offline antivirus you have installed on our computer. However, in general only one antivirus installed offline on one system. Free. Disadvantages

Here are the disadvantages of free antivirus online:

They are not as complete or as effective as antivirus offline. They have all the features of the online antivirus payment have restrictions. They have no permanent protection, because they run at the request and its execution ends when you close the browser, so you do not protect your system in real time. Since typically run ActiveX or Java component in browsers with weak support for these technologies may not run correctly. Not replace antivirus offline, complement it. Major antivirus online free

Here is a list of some of the major antivirus free online:

Kaspersky Online Scanner. BitDefender Online Scanner. Trend Micro HouseCall. ESET NOD32 Online Scanner. Panda ActiveScan. Symantec Security Check. Source: Free Antivirus online