How to Fix DRIVER_UNLOADED_WITHOUT_CANCELLING_PENDING_OPERATIONS (Windows)
Quick Answer
The DRIVER_UNLOADED_WITHOUT_CANCELLING_PENDING_OPERATIONS error indicates that a device driver failed to properly shut down, leaving operations incomplete. This often leads to a Blue Screen of Death (BSOD) and system restart. The fastest fix often involves updating problematic drivers or checking system files for corruption.
What Causes This Error
- Outdated or corrupted device drivers, particularly for network adapters, graphics cards, or storage controllers.
- Hardware malfunctions or incompatibilities, leading to driver instability.
- Corrupted system files or Windows installation issues.
- Conflicting software, such as antivirus programs or virtualization software.
- Overclocking or unstable system configurations.
- Memory (RAM) issues.
Step-by-Step Fixes
1Update Device Drivers to Fix DRIVER_UNLOADED_WITHOUT_CANCELLING_PENDING_OPERATIONS
- Press the Windows key + X and select 'Device Manager' from the menu.
- Expand categories such as 'Display adapters', 'Network adapters', and 'Storage controllers'.
- Right-click on each device and select 'Update driver'.
- Choose 'Search automatically for updated driver software' and follow the on-screen prompts.
- If a specific driver is suspected, visit the manufacturer's website (e.g., NVIDIA, AMD, Intel, Realtek) to download and install the latest compatible driver for your operating system.
2Run the System File Checker (SFC) and DISM Tools
- Press the Windows key + S, type 'cmd', right-click on 'Command Prompt', and select 'Run as administrator'.
- In the Command Prompt window, type 'sfc /scannow' and press Enter. Allow the scan to complete, which may take some time.
- After the SFC scan, if issues were found and fixed, restart your computer. If issues remain or were not fixed, proceed to the next step.
- In the same elevated Command Prompt, type 'DISM /Online /Cleanup-Image /RestoreHealth' and press Enter. This command uses Windows Update to provide files required to fix corruptions. Allow it to complete.
- Once both scans are finished, restart your computer to apply any changes.
3Check for Windows Updates
- Press the Windows key + I to open Settings.
- Click on 'Update & Security'.
- Click on 'Windows Update' in the left pane.
- Click the 'Check for updates' button.
- If updates are available, download and install them. Restart your computer if prompted.
4Perform a Clean Boot
- Press the Windows key + R, type 'msconfig', and press Enter to open System Configuration.
- Go to the 'Services' tab, check 'Hide all Microsoft services', and then click 'Disable all'.
- Go to the 'Startup' tab and click 'Open Task Manager'.
- In Task Manager, disable all startup items by selecting each one and clicking 'Disable'. Close Task Manager.
- Back in System Configuration, click 'Apply' and then 'OK'. Restart your computer when prompted. If the error does not reappear in clean boot, re-enable services and startup items one by one to identify the conflicting application.
Advanced Fixes
Test System Memory (RAM)
- Press the Windows key + R, type 'mdsched.exe', and press Enter.
- Select 'Restart now and check for problems (recommended)'.
- Your computer will restart and run the Windows Memory Diagnostic Tool. This process may take several minutes.
- Upon restart, Windows will display the test results. If errors are detected, it may indicate faulty RAM modules that need to be replaced.
Roll Back a Recently Updated Driver
- Press the Windows key + X and select 'Device Manager'.
- Locate the device whose driver was recently updated and might be causing the issue (e.g., graphics card, network adapter).
- Right-click on the device and select 'Properties'.
- Go to the 'Driver' tab and click 'Roll Back Driver' if the option is available. Follow the on-screen instructions.
- If the option is grayed out, it means no previous driver is available to roll back to. In this case, consider uninstalling the driver and letting Windows install a generic one, or installing an older version manually from the manufacturer's website.
Frequently Asked Questions
What does DRIVER_UNLOADED_WITHOUT_CANCELLING_PENDING_OPERATIONS mean?
This error signifies that a device driver attempted to unload from memory without first canceling all pending operations. This can lead to system instability and a Blue Screen of Death (BSOD) because the operating system expects drivers to properly manage their tasks before shutting down.
Is DRIVER_UNLOADED_WITHOUT_CANCELLING_PENDING_OPERATIONS a serious error?
Yes, it is a critical error that causes your system to crash and restart. While it doesn't always indicate permanent hardware damage, it points to a significant issue with a driver or underlying hardware/software conflict that needs to be addressed to prevent further system instability and potential data loss.
Can overclocking cause this error?
Yes, unstable overclocking of the CPU, GPU, or RAM can lead to system instability, including driver-related errors like DRIVER_UNLOADED_WITHOUT_CANCELLING_PENDING_OPERATIONS. If you have overclocked your system, reverting to default clock speeds is a recommended troubleshooting step.
How do I identify which driver is causing the DRIVER_UNLOADED_WITHOUT_CANCELLING_PENDING_OPERATIONS error?
Identifying the specific driver can be challenging. You can analyze the crash dump files using tools like WinDbg, which can sometimes pinpoint the faulty driver. Alternatively, consider what hardware or software changes were made recently, as these often correlate with the onset of the error.
Will reinstalling Windows fix DRIVER_UNLOADED_WITHOUT_CANCELLING_PENDING_OPERATIONS?
Reinstalling Windows can resolve the error if it is caused by deeply corrupted system files or software conflicts that are difficult to isolate. However, it is a last resort, as it will erase all data on the system drive. It will not fix issues caused by faulty hardware.