Here's some security tools you can download. All are fre to use, however, read through the documentation and theck the home site of each product - there may be newer versions.
Lavasoft's Ad-Aware SE Personal edition - anti spyware
AVG Free by Grisoft - anti virus
Ewido Free by Grisoft - anti spyware
K9 Child Protection - control what the kids can see
Spybot Search and Destroy - Anti spyware
Windows Defender Beta by Microsoft
Zone Alarm Free Personal Firewall
Ok, so you can't get on line. This LSPFix may fix that.
How to run the above LSPFix
Why are there so many anti-spyware programs? Because each of them looks at spyware differently, and one program may find something that all the rest miss.