Windows gets IP address and can browse LAN but not Internet
This is becoming more and more common. Your PC gets IP address settings OK, can browse the LAN but cannot access the Internet. Spyware cleaners cannot update because they use the same setting as IE. Hijack This shows the list of items loading at startup. Look for a registry entry for Internet Explorer for the ‘proxy override’ or ‘proxy server’, usually it is set to 127.0.0.1 (localhost) or .local which causes IE to look at the local computer (itself) for internet access.
Remove these entries and reboot will normally get the browsing and online updates happening again, and still do a scan for spyware using Spybot and Malware Bytes.

