UPDATE: New Beta version 1.9.1 released which comes with new community-based firewall.
If you are looking for a new free antivirus for your system, you should give a try to "Panda Cloud Antivirus" which is absolutely free and light-weight antivirus.
"Panda Cloud Antivirus" is based on new cloud computing concept in which services are provided over Internet. This new antivirus scans files through Internet which makes it very light on system resources. It also doesn't need regular updating of virus definitions as it automatically updates the virus definitions in the cloud (remote server) and scans your files using those latest virus definitions.
You should have a good speed Internet connection to fully utilize this new cloud based antivirus otherwise it won't work. Don't worry, if you are offline, it'll still protect your system from virus attack as it stores the virus definitions in local cache as well.
Panda Security has released a new beta version 1.9.1 which incorporates a full-fledged community-based firewall which automatically assigns inbound and outbound communication privileges to processes according to their risk level.

This new module includes the following features:
- Application rules for users to specify which programs may access the network or the Internet.
- System rules for all programs. Unlike other firewalls, system rules are included in the same screen as application rules, allowing for prioritization between the two sets of rules.
- Rule priority for users to configure the order in which rules are applied.
- Automatic management of permissions for programs establishing network connections, based on the risk rating assigned by Collective Intelligence.
- Local notifications of connection attempts, and ability to create rules and set permissions from warning messages.
- Rule import/export.
- Notification in reports of blocked connection attempts.
Besides incorporating this new feature, the beta release includes the usual batch of bug fixes and optimizes the performance of automatic and manual scans.
Existing Panda Cloud Antivirus users will be automatically upgraded to version 1.9.1. If you are not using it but want to give a try, you can download it using following links:
Download Panda Cloud Antivirus 1.9.1 Beta
Download Panda Cloud Antivirus 1.5 Stable
It can be used in Windows XP, Vista and 7. Both 32-bit and 64-bit Windows versions are supported.
This article was posted by VG in following section: Software.
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VM
Panda Cloud Antivirus may be useful to notebooks or gaming computers that the resources are precious. Although i think that cloud antivirus won't be so good as a firewall :/
Robero
Thanks VG,much appreciated.Cheers mate!
Joji
The only crappy thing about Panda Cloud, is that you have to unistall any previous "very known" anti-virus softwares in your computers.
"Very known" as in ESET, AVG, PC Tools, Onecare, Bit Defender, etc.
But you don't have to unistall not-very-known ones like Malwarebyte because it doesn't detect it. :)
~Joji~
Uewd
Version 1.1 is released!
ahmad
how can i update this?
VG
Its clearly mentioned: :)
It also doesn't need regular updating of virus definitions as it automatically updates the virus definitions in the cloud (remote server) and scans your files using those latest virus definitions.
Uewd
Hi VG, There is a newer version available: Panda Cloud Free Antivirus 1.1.2
IMPROVED: Security Toolbar and identify protection (IE, Firefox)
Uewd
Can this work on my DSL which is 125 kbps?
VG
^^ Sure.
Uewd
Protected me better than Avira