Comodo Internet Security

comodo fire wall is one of the best free software. and it is award winning software for personal usage
i am using this software since 4 years..so 100% safe your system..

You may use this link to Download click here .

 Latest version :  5.10 and above

Requirements:

Windows XP / 2003 / Vista / Windows7

Languages:

Multiple languages

License:

Freeware

Sygate Personal Firewall 5.6.2808

 Another best fire wall software is sygate personal fire wall. It is freeware but after this version it is discontinued during 2005th year but still it is available the version 5.6.2808
Note: if your system has symantec antivirus it cannot be installed properly ,but it is still good software

Requirements:  Windows XP/ 2000 /2003
License: Freeware
Download