Fix netwsw00 sys BSOD on Windows 11

If your Windows 11 PC crashes with a Blue Screen of Death (BSOD) referencing netwsw00.sys, the cause is almost always a corrupted or incompatible Intel Wi-Fi driver. The fix is to uninstall the current driver and either reinstall a fresh copy from Intel or let Windows install a stable version automatically.

What Is netwsw00.sys?

netwsw00.sys is a system driver file used by Intel Wireless Adapters. It is part of the Intel PROSet/Wireless Software package and handles communication between Windows and your Wi-Fi hardware. The file name may vary slightly (e.g., netwtw01.sys, netwtw02.sys) depending on the adapter generation, but the troubleshooting steps are the same.

When this file becomes corrupted, outdated, or incompatible with a Windows update, it can trigger a BSOD with stop codes like DRIVER_IRQL_NOT_LESS_OR_EQUAL or SYSTEM_THREAD_EXCEPTION_NOT_HANDLED. The crash usually happens during boot, when waking from sleep, or when the Wi-Fi adapter is under load.

Why Does This BSOD Happen?

Several scenarios commonly lead to a netwsw00.sys BSOD:

Windows Update conflicts: A recent Windows 11 feature update may install a driver version that your Intel adapter does not support properly.
Corrupted driver files: A power outage, improper shutdown, or disk error can damage the driver file.
Outdated driver: Intel releases updates to fix bugs and security issues; an old version may have known crash triggers.
Overclocking or power management: Aggressive power-saving settings on the Wi-Fi adapter can cause it to behave erratically.

It is not a hardware failure in most cases. The problem is almost always software-related, so you can usually fix it without replacing the Wi-Fi card.

How to Fix the netwsw00.sys BSOD – Step by Step

Try these methods in order. The first one resolves the issue for most users.

Boot into Safe Mode. If the BSOD appears during startup, you need to boot into Safe Mode to make changes. Restart your PC, and as soon as the Windows logo appears, press the power button to interrupt the boot. Repeat this three times. On the third attempt, Windows will enter the Recovery Environment. Go to Troubleshoot > Advanced options > Startup Settings > Restart, then press 4 or F4 for Safe Mode.
Uninstall the current driver. In Safe Mode, right-click the Start button and select Device Manager. Expand Network adapters, find your Intel Wireless adapter (it usually has “Intel” in the name), right-click it, and choose Uninstall device. Check the box that says Delete the driver software for this device and click Uninstall.
Restart normally. After uninstalling, restart your PC. Windows will automatically detect the adapter and install a generic Microsoft driver. This driver is stable but may lack advanced features. Test if the BSOD is gone.
Install the latest Intel driver. If the generic driver works, you can optionally install the latest driver from Intel’s official website. Go to the Intel Download Center, search for your adapter model, and download the appropriate Windows 11 driver. Run the installer and follow the on-screen instructions.
If the BSOD persists, use System Restore. If the problem started after a recent change, roll back your system to a point before the issue. Search for “System Restore” in the Start menu, choose a restore point, and follow the prompts.

What to Do If Safe Mode Also Crashes

If you cannot even boot into Safe Mode, the driver is likely being loaded very early. Try these alternative approaches:

Use Startup Repair. Boot from a Windows 11 installation USB drive, select Repair your computer, then go to Troubleshoot > Advanced options &em>Startup Repair. This may fix corrupted system files.
Disable the driver via Command Prompt. In the Recovery Environment, open Command Prompt and run dism /image:C:\ /get-drivers to list drivers. Find the netwsw00.sys entry and note the published name (e.g., oem42.inf). Then run dism /image:C:\ /disable-driver /driver:oem42.inf. This disables the driver without needing to boot normally.
Run System File Checker. In the same Command Prompt, run sfc /scannow /offbootdir=C:\ /offwindir=C:\Windows to repair corrupted system files.

Preventing Future netwsw00.sys BSODs

Once you have fixed the immediate crash, take these steps to reduce the chance of it happening again:

Keep Windows updated. Microsoft and Intel work together to fix driver issues through Windows Update. Install all recommended updates.
Disable automatic driver updates. Sometimes Windows Update installs a driver that Intel hasn’t fully tested. You can temporarily block this by using the Show or hide updates troubleshooter from Microsoft, but be careful to only hide the driver update, not security updates.
Adjust power management. In Device Manager, go to your Wi-Fi adapter’s Power Management tab and uncheck Allow the computer to turn off this device to save power. This prevents the adapter from being put into a low-power state that can trigger the bug.
Update your BIOS. Sometimes a BIOS update improves compatibility with Wi-Fi drivers. Check your motherboard or laptop manufacturer’s website for the latest BIOS version.

Frequently Asked Questions

Will I lose my Wi-Fi connection after uninstalling the driver?

Yes, temporarily. After you uninstall the driver, Windows will automatically install a generic Microsoft driver that works with most Intel adapters. You will have Wi-Fi again, but it may lack some advanced features like Intel’s management software. You can then install the latest Intel driver if you want those features back.

Can I just rename or delete netwsw00.sys to fix the BSOD?

No. Deleting or renaming the file will not help because Windows will still try to load it and fail, potentially causing a different error. The correct approach is to uninstall the driver through Device Manager, which removes the registry entries and file references properly.

Is this BSOD caused by a hardware failure?

In most cases, no. The netwsw00.sys BSOD is almost always a software issue. However, if the problem persists after reinstalling the driver and updating Windows, it could indicate a failing Wi-Fi card. You can test this by booting into a Linux live USB – if Wi-Fi works there, the hardware is fine.

Why does the BSOD happen after waking from sleep?

This is a known issue with power management. When the Wi-Fi adapter enters a low-power state, the driver may fail to reinitialize correctly. Disabling the power-saving option in Device Manager often resolves this. Also, make sure you have the latest Intel driver, as newer versions have improved sleep/wake handling.

Can I use System Restore to fix the BSOD?

Yes, if you have a restore point from before the issue started. System Restore will revert driver and system files to that earlier state, which can undo the problematic change. It does not affect your personal files, but it may remove recently installed programs.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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