There are a number of reliable sources to find an antivirus free download for Vista. One such source is the ever popular AVG, and another source is the less well-known Avira. There are also free versions of some very well known software, like Avast. Avast offers a thirty day free trial, which can be an excellent opportunity to determine its' ease of usability.

All of the versions listed offer free versions, as well as paid versions. It may be possible t use thirty day trials on more than just the Avast. These may not always be available, but may vary as seasonal specials.

The AVG software has been a reliable and popular choice for years. AVG is a free and easily accessible type of anti-virus software. However, studies have established that AVG may not catch as many infections as other software. Whereas AVG does provide adequate basic protection, there are other choices that include more protection.

Avira provides excellent coverage for viruses, but the free version does not claim any protection against spamware. Then again, there is some uncertainty as to the differences between spamware and viruses. Antispyware is only available on a paid version of this software.

AV-test.org has performed extensive research to determine the best free anti-virus software. Their studies have concluded that the best, most reliable choice is Avast. Avast ( even on the free version) searches for 7 different ways that a virus could attack a computer. Another impressive feature is the ability to scan for infection every time the computer boots . This feature can also be turned off, if desired, as it can take some time.

Regardless of the choices that are made while choosing anti-virus software, it is absolutely vital to pick and use one. Once that software is installed, it is just as crucial to run it often, and to update as necessary. If an infection has already been detected, then a swift, effective tool to remove the virus or spamware needs to be performed immediately. At that time, if files have been corrupted, it may be appropriate to consult a professional to prevent further damage.