If you read the MS Knowledge Base article I gave you, it tells you how. You
do a few things:

1. Look up what you see in the Startup tab in msconfig. Here are some links
where you can do that:

http://aumha.org/a/loads.htm - What loads at Startup?
http://castlecops.com/StartupList.html
http://www.pacs-portal.co.uk/startup_index.htm
http://www.theeldergeek.com/services_guide.htm
http://www.liutilities.com/products/wintaskspro/processlibrary/

2. On the Startup tab only (not Processes), when you've determine what the
entries are you can systematically disable non-essential things to see
which program is giving the trouble. Troubleshooting is mostly a process of
deduction.

I can't answer your question about the desirability of ignoring the message
without seeing the computer. It may be a better solution for you to take
the machine to a local professional (not a BigStoreUSA type of place) and
have them check it out.

Malke