Open Source Software are the ones which are absolutely free and we can even see its source code.
I feel these softwares are far more Better than the other non open source softwares ..
so try the Sofwares at the link im providing here and do give sum feedback to me on this blog..
Link for List of OpenSource Softwares: OPEN SOURCE SOFTWARES you can also download the softwares here at this link..
ClamWin antivirus for Windows absolutely free ..its A open source software:: do try it for ur OS security from viruses…
Download ClamWin antivirus for Windows
Spyware Terminato: free Software(Open Source)
Download Spyware removal and spware protection