FIX: IOS Failed to Initialize Error During Installation

Article translations Article translations
Article ID: 168866 - View products that this article applies to.
This article was previously published under Q168866
This article has been archived. It is offered "as is" and will no longer be updated.
Expand all | Collapse all


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.


Article ID: 168866 - Last Review: October 26, 2013 - Revision: 3.0
Applies to
  • Microsoft Visual Basic 5.0 Learning Edition
  • Microsoft Visual Basic 5.0 Professional Edition
  • Microsoft Visual Basic 5.0 Enterprise Edition
kbnosurvey kbarchive kbbug kbfix kboswin98fix KB168866

Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from