The error is very generic. But pests that are not a virus can cause this.
In short, my advice is to be parasite free. Also, with the Microsoft Code Leak, IE 5.5 is now exploitable so that makes the safer browser to be IE 6.0 or "other" browser.
My policy needle on the pest-meter is pegged at zero tolerance. I eject all that these five tools find.
http://reviews.cnet.com/5208-6132-0.html?forumID=32&threadID=1313&start=0 notes the five scanning tools and removal tools that are fairly safe. If one does encounter an issue, its always been damage done by the MALWARE. The most common issue being Layered Service Provider replacement which you can use LSPFIX (Hint: use http://www.google.com to find).
The thread has follow on discussions about new links if you don't want to use Google to find an item.
PS. All the tools are free.
I have a gateway e-4200 windows me.Everytime i try to use my Internetexplorer I get an error message saying Explorer has caused an error in user.exe exployer will now close If you continue to experence problems restart computer. I have done this some many time.Ihave ran a virus check none found. Ihave scaned my computer for problems none found . I also defragmented my computer and nothing is helping.Please help