Heavily Infected Laptop w/o Internet Access

[fishhead1306]

My son's Dell Inspiron 8600 laptop is heavily infected. I followed steps 1, 2 & 3. With Step 3, SAS could not update because the laptop cannot connect to the internet despite a wireless modem that appears to be working fine with an excellent signal. So, I did a complete scan with definitions the program said were 45 days old. It still found 200+ viruses that it quarantined. After rebooting, I was hoping to regain internet access, update SAS, rerun it and continue with the remaining steps but that did not happen.
SAS log is attached.
What do I do now?

[attachment deleted by admin]

[spacecat9]

How long have you had the viruses. have you tried a system restore to an earlyer time before the virus were on the machine. after doing this scan your computer and update that virus software.

[fishhead1306]

The laptop has been problematic for a couple months. The earliest restore point was Dec 11. I tried to restore to that point but it would not happen. When I hit Next at the Confirm Restore Point Selection, nothing happens.

The laptop is running Windows XP Pro ver 2002 with SP3.