ERROR_IRQ_BUSY 0x8007045F

Error code 1119 · HRESULT 0x8007045F

WINDOWS

Unable to open a device that was sharing an interrupt request (IRQ) with other devices. At least one other device that uses that IRQ was already opened.

Windows troubleshooting diagram: Device Manager warning and a system file scan
Windows errors: check drivers, system files and Event Viewer, in that order.

What it means

ERROR_IRQ_BUSY is a Windows error code (system error 1119, returned as HRESULT 0x8007045F) reported by Windows. Its official message is: “Unable to open a device that was sharing an interrupt request (IRQ) with other devices. At least one other device that uses that IRQ was already opened.”

How to fix ERROR_IRQ_BUSY

  1. Open Device Manager, look for yellow warnings and update or roll back the driver
  2. Disconnect and reconnect the hardware; test it on another USB port or machine
  3. Check the System event log for the device's error driver name

Related errors

ERROR_IO_DEVICEERROR_DLL_INIT_FAILEDERROR_SERIAL_NO_DEVICE0xC19002000xC1900223STATUS_ACCESS_VIOLATIONSTATUS_IN_PAGE_ERRORSTATUS_ACCESS_DENIED

Source: Microsoft WinError.h

Last updated: