Configure Protected-Mode Hard Disk Interrupt Handling (Windows 95/98/Me)

Registry Guide for Windows
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Registry tweaks, tricks & hacks to optimize, enhance and secure Microsoft Windows.

Configure Protected-Mode Hard Disk Interrupt Handling (Windows 95/98/Me)
Category: Home > Hardware > Disk Drives

This tweak can be easily applied using WinGuides Tweak Manager.
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This switch allows Windows to terminate interrupts from the hard disk controller, bypassing the ROM routine that handles these interrupts. Some hard drives might require that this setting be disabled in order for interrupts to be processed correctly. If this setting is disabled, the ROM routine handles the interrupts.

Open your registry and find the key below.

Create a new Binary value, or modify the existing value called 'VirtualHDIRQ' using the settings below.

Exit your registry, you may need to restart or log out of Windows for the change to take effect.


(Default)	REG_SZ	(value not set)
VirtualHDIRQ	REG_BINARY	00 00 00 00


	HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\FileSystem

Settings:

System Key: [HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\FileSystem]
Name: VirtualHDIRQ
Type: REG_BINARY (Binary Value)
Value: (00 00 00 00 = disabled, 01 00 00 00 = enabled)

Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.

Last Modified: May 14, 2002

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