If you type MICROSOFT INSTALLER CLEANUP UTILITY into google.com you find a power tool I use to stop some software from trying to install. Maybe that's it or not.
As to the internet access, your post is much too light on details for me to comment further.
I could at one time, now I can't.
I have an older Laptop computer, a Sager, running Win2k, it has a ethernet card,which used to work,(the little icon says it's connected, but I cannot access any webpages) but now it keeps wanting to install a modem, (there is no modem in it, it was removed) I let it go through the installation because it kept "finding new hardware : every time I restarted or booted up, then I "uninstalled" it to no avail, it keeps finding something thats not there..I don't understand why it's doing this. I would really like to figure this one out. Thanks for any help in advance.
I got it from a friend of mine that lives out of state.