While trying to open My Computer "An error has occured Internet Explorer will now cloise" meesage is came.Why?

What version of IE are you running? Sounds like you could have a virus or a conflict, try downloading the latest version of IE. If that doesn't help get yourself AVG Free from AVG Free - Download installation files & documentation and spybot from The home of Spybot-S&D!, remove all other anti virus and malware/spyware software, install them both and let them run a full scan.

Internet Explorer has nothing to do with My Computer.

Sounds like your file associations have gotten "jumbled".

Try an "Over The Top" re-install of 98/98SE. Just be sure to "point" the install to C:\WINDOWS & not C:\WINDOWS001 or anything similar.

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