Disable security to download a program?

Hi, new to Windows 7.

1. How can I disable firewall and anything to install a new program?

2. where can I find the Tools System (cleanup and disk defragmentation).

Avira has been recommended by one of the people here in the forums. I tried for awhile and it seemed good, but it was difficult to uninstall.

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

I use Avast free on another machine and that's OK too, but it won't slow down the boot a little time.

http://www.avast.com/free-antivirus-download

A non-activated version of Norton would not take effect something.

Tags: Notebooks

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