I've run into a dozen times over the last month and it was spyware again and again. If that's not it then it's drivers.
Your post didn't supply what the forum tip asked for, or noted spyware or drivers.
I"m using Win 98se on a PII 400Mhz. Several weeks ago I got a message from microsoft update , ran the scan and downloaded 3 items (I'M trying to locate what updates they were)that were needed for security, according to MS.
I ended up having to run Windows setup again, did not reformat. Everything is back to normal except for accessing the Internet. I use dial-up, the modem dials up but then can't connect to server. I've checked all settings with the computer I'm borrowing and everything matches. What am I missing??