There is no way possible to make your computer 'invincible'. You may need to follow the advice of others, and just disconnect from the Internet.
Don't use the computer, put it in the box that it came in and put it in the closet.
That being said ... follow this guideline (even tho' your friend knows how to to remove viruses
Make your Internet Explorer more secure - This
can be done by following these simple instructions:
From within Internet Explorer click on the
Tools menu and then
click on
Options.Click once on the
Security tab Click once on the
Internet icon so it becomes highlighted. Click once on the
Custom Level button.
- Change the Download signed ActiveX controls to Prompt
- Change the Download unsigned ActiveX controls to Disable
- Change the Initialize and script ActiveX controls not marked as
safe to Disable
- Change the Installation of desktop items to Prompt
- Change the Launching programs and files in an IFRAME to
Prompt
- Change the Navigate sub-frames across different domains to
Prompt
- When all these settings have been made, click on the OK button.
- If it prompts you as to whether or not you want to save the settings,
press the Yes button.
- Next press the Apply button and then the OK to exit the
Internet Properties page.
- Use an AntiVirus Software - It is very
important that your computer has an anti-virus software running on your
machine. This alone can save you a lot of trouble with malware in the
future. See this link for a listing of some online & their stand-alone
antivirus programs:
Virus,
Spyware, and Malware Protection and Removal Resources
- Update your AntiVirus Software - It is
imperitive that you update your Antivirus software at least once a week
(Even more if you wish). If you do not update your antivirus software then
it will not be able to catch any of the new variants that may come out.
- Use a Firewall - I can not stress how
important it is that you use a Firewall on your computer. Without a firewall
your computer is succeptible to being hacked and taken over. I am very
serious about this and see it happen almost every day with my clients.
Simply using a Firewall in its default configuration can lower your risk
greatly. For a tutorial on Firewalls and a listing of some available ones
see the link below:
Understanding
and Using Firewalls
- Visit Microsoft's Windows Update Site
Frequently - It is important that you visit
http://www.windowsupdate.com
regularly. This will ensure your computer has always the latest security
updates available installed on your computer. If there are new updates to
install, install them immediately, reboot your computer, and revisit the
site until there are no more critical updates.
- Install SpywareBlaster - SpywareBlaster will
added a large list of programs and sites into your Internet Explorer
settings that will protect you from running and downloading known malicious
programs. A tutorial on installing & using this product can be found here:
Using
SpywareBlaster to protect your computer from Spyware and
Malware
- Update all these programs regularly - Make
sure you update all the programs I have listed regularly. Without regular
updates you WILL NOT be protected when new malicious programs are
released.
Follow this list and your potential for being infected again will
reduce dramatically.