What I would do in an instance like this is try to ipconfig /release then renew
from the comand promt.
Goto run and typ cmd then click ok, in this window typ ipconfig /release then retype ipconfig renew.
If this still doesn’t work try running spyware remover and if you don’t have one go to
www.tucows.com and get a free one.
You also try running MSCONFIG in the run command then go to your start up options and deselect a few from running at start up, hope this help Scott.