Below are some info to prevent Spyware:
1. Update your operating systems regularly.
2. Install anti-spyware, anti-virus and firewalls if you think it is cumbersome get a internet security suite.
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Hi,
May be you should try one of the method :
[url]http://www.pcsecurity-info.com/tips/tips-free-remove-spyware.html[/url]
I hope this may help before you decide to reformat your hard disk.
good ...