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Microsoft KB Archive/168866

From BetaArchive Wiki
Knowledge Base

FIX: IOS Failed to Initialize Error During Installation

Article ID: 168866

Article Last Modified on 12/10/2003


  • Microsoft Visual Basic 5.0 Learning Edition, when used with:
    • Microsoft Windows 95
  • Microsoft Visual Basic 5.0 Professional Edition, when used with:
    • Microsoft Windows 95
  • Microsoft Visual Basic 5.0 Enterprise Edition, when used with:
    • Microsoft Windows 95

This article was previously published under Q168866


Installing Visual Basic version 5.0 on a system running Windows 95 with the OEM Service Release listed above may cause the following error message to be displayed during the system restart:

"Windows initializing device IOS: Windows protection error IOS failed to Initialize, Please restart"


In many cases this error has been caused by driver problems. You should contact your vendor to see if an updated driver is available to fix the problem.

It is also possible that the error is caused by the problem described in the following article in the Microsoft Knowledge Base:

157924 Error Message "IOS Failed to Initialize" on Boot


Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This problem has been fixed in Microsoft Windows 98.

Keywords: kbbug kbfix kboswin98fix KB168866