Microsoft KB Archive/302952

= Computer Runs Very Slow After Upgrade to Windows 98 from Windows 95 =

Article ID: 302952

Article Last Modified on 1/31/2007

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APPLIES TO


 * Microsoft Windows 98 Second Edition
 * Microsoft Windows 98 Standard Edition

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This article was previously published under Q302952



The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.



SYMPTOMS
After you upgrade your Microsoft Windows 95-based computer to Microsoft Windows 98, you may experience symptoms similar to the following:  Your computer's performance is unusually slow. Your mouse operates erratically. You cannot start programs from the Start menu. Your computer stops responding (hangs), and you receive an error message similar to the following:

Em_exec.exe caused an Invalid Page Fault in module Kernel32.dll





CAUSE
This behavior can occur in the following situation:
 * You have installed a Logitech MouseWare mouse on your Windows 95-based computer.

-and-
 * You upgrade your computer to Windows 98.

This behavior can occur when the Event Macro Executive (Em_exec.exe) utility is loaded when Windows 98 starts.



RESOLUTION
To work around this behavior, use one of the following methods.

Method 1
Turn off the Event Macro Executive (Em_exec.exe) utility. To do this, follow these steps:
 * 1) On the taskbar, click Start, and then click Run.
 * 2) In the Open box, type Msconfig, and then click OK.
 * 3) In the System Configuration utility, click to clear the EM_EXEC check box on the Startup tab, click Apply, and then click OK.
 * 4) Click Yes to restart your computer.

Method 2
Uninstall Logitech MouseWare. To do this, follow these steps:
 * 1) Click Start, point to Settings, click Control Panel.
 * 2) Double-click Add/Remove Programs.
 * 3) Select Logitech MouseWare and then click Add/Remove.
 * 4) Follow the instructions to completely remove Logitech MouseWare from your computer.



MORE INFORMATION
Additional information about Logitech MouseWare is available from Logitech at the following URL:

http://www.logitech.com/support

Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

Keywords: kb3rdparty kberrmsg kbprb KB302952

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