Windows BSOD Error 0x00000048 — CANCEL_STATE_IN_COMPLETED_IRP Fix

What Does This Error Mean?

The 0x00000048 blue screen means a driver tried to cancel an I/O Request Packet (IRP) that was already completed. This is called CANCEL_STATE_IN_COMPLETED_IRP. An IRP is how Windows drivers communicate requests like reading a file or sending data. Trying to cancel a finished request is a driver programming error that causes Windows to crash.

Affected Models

Windows 10
Windows 11
Windows 8.1
Windows Server

Common Causes

A storage, USB, or network driver has a bug in how it manages I/O request completion
A recently updated driver introduced a regression in I/O request handling
A USB device or external drive is being unplugged while a transfer is in progress
The Windows I/O subsystem files are corrupted
A third-party filter driver (antivirus, backup software) is interfering with I/O completion

How to Fix It

Identify the crash using WhoCrashed. Download it free from resplendence.com, run it after the blue screen, and note the driver name it reports.

This is the most important step. Without knowing which driver caused the crash, you are guessing at the fix.
Update or roll back the reported driver. Open Device Manager, find the device linked to that driver, right-click it, and choose Update or Roll Back.

If a Windows Update recently changed this driver, rolling back is usually faster than searching for a new version.
Safely remove USB and external devices before unplugging them. Always use the 'Safely Remove Hardware' icon in the system tray before disconnecting USB drives.

Yanking a USB drive during an active transfer is one of the most common ways to trigger an IRP cancellation error.
Temporarily disable antivirus or backup software to test if it is the cause. Disable it, then use your computer normally and see if the crashes stop.

Filter drivers used by security and backup software sit between Windows and your storage, and can cause IRP conflicts.
Run System File Checker and DISM. In an elevated Command Prompt: sfc /scannow — then: DISM /Online /Cleanup-Image /RestoreHealth

Corrupted I/O subsystem files can trigger this error even when drivers are fine.

When to Call a Professional

If this crash happens consistently with a specific device like a USB hub or external drive, the hardware itself may be defective. A technician can test the device on another system to confirm. For server environments, this error requires kernel-level debugging to resolve safely.

Frequently Asked Questions

What is an I/O Request Packet (IRP)?

An IRP is like a work order passed between Windows and a driver. For example, when you open a file, Windows creates an IRP asking the storage driver to retrieve the data. Once the driver finishes and marks the IRP as complete, it cannot be cancelled. A driver that tries to cancel it anyway causes Windows to crash.

Does this error mean my hard drive is failing?

Not necessarily. This is usually a driver bug, not a sign of hardware failure. However, if you see this error alongside other symptoms like slow performance or strange noises from your hard drive, check the drive health with CrystalDiskInfo.

Can this happen with a brand new driver update?

Yes. This type of bug is sometimes introduced in new driver versions and then fixed in a follow-up release. If the crash started after a driver update, check the manufacturer's website for a newer version or roll back to the previous one.