Registry Home > Windows > File System

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

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.

This tweak can be easily applied using WinGuides Tweak Manager.
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Open your registry and find or create the key below.

Create a new Binary value, or modify the existing value, called "VirtualHDIRQ" and set it according to the value data below.

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

Registry Editor Example
|NameTypeData|
|(Default)REG_SZ(value not set)|
|VirtualHDIRQREG_BINARY00 00 00 00|
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|HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\FileSyst...|
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Registry Settings
System Key: [HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\FileSystem]
Value Name: VirtualHDIRQ
Data Type: REG_BINARY (Binary Value)
Value Data: (00 00 00 00 = disabled, 01 00 00 00 = enabled)

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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