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Error Message “While initializing device NDIS: Windows protection error” when Installing Windows 95/98


When installing Windows 95 or Windows 98 on a system that has a CPU rated at 2.2 GHz or higher, you receive the following error message:

While initializing device NDIS: Windows protection error


This issue is caused by a timing problem in the Windows Network Driver Interface Specification (NDIS) driver.  The problem does not occur on systems with a CPU rated at 2.1 GHz or lower.


An updated driver is available from Microsoft, but cannot be downloaded directly.  You must contact Microsoft Support for a resolution.  Please refer to the following Microsoft Help and Support article for more information:

Windows Protection Error in NDIS with a CPU That Is Faster Than 2.1 GHz

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