Should I download Windows defender? if not, what microsoft antivirus program should i download..that

I am wondering if windows defender is any good..I want to download it but it might not be good so please tell me if it's good or bad..and what microsoft antivirus program that is free is a good program to use?? please help..and thanks ;)

Should I download Windows defender? if not, what microsoft antivirus program should i download..that is free?agv

Yes you should install it; Windows Defender is very good active (full time) spyware protection.

In addition to a active spyware protection you must have full time (active) virus protection and a firewall.

All the following programs are free.

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Full Time (Active) Virus Protection

If you do not have active virus protection, install only one. All are excellent.

AVG Antivirus 7.5 Free Edition

Windows 98/Me/NT/2000/XP/Vista

http://free.grisoft.com/freeweb.php/doc/...

http://www.download.com/AVG-Anti-Virus-F...

or

Free antivirus - avast! 4 Home Edition

Windows 95/98/Me/NT/2000/XP/Vista

http://www.avast.com/eng/avast_4_home.ht...

or

Avira AntiVir PersonalEdition Classic

Windows 95/98/Me/NT/2000/XP/Vista

http://www.free-av.com/

http://www.download.com/3120-20_4-0.html...

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Full Time (Active) spyware protection and run a full scan.