Home » Fix Windows 10 Driver irql_not _less_or_ equal BSOD error (5 working solutions)

Fix Windows 10 Driver irql_not _less_or_ equal BSOD error (5 working solutions)

Getting Driver irql_not _less_or_ equal BSOD error while playing games, working on heavy graphics programs such as (3D max, Autocad, Photoshop) Or even after recent windows upgrade? Usually when the system needed to meet the performance expectations and PCs being unable to handle the pressure. This will results Blue Screen of Death (BSOD) error such as DRIVER IRQL_NOT_LESS_OR_EQUAL error. Mostly Windows 10 Blue Screen Errors Are related to a Hardware or Software related problem. But when looking for the reason behind “Driver irql not less or equal BSOD Error It means Installed Device driver is unable to communicate with the specific hardware device“. This may be due To Driver conflict or incompatible Device driver, Corrupted system files, Security software and more.

Issue: Driver irql_less_or_not equal error when connecting to wireless display whist using both wireless and an Ethernet connection

Since this update (Windows 10 version 21H1 – kb4284835), connecting to a wireless display while using both an ethernet and wireless connection is causing a blue screen with the error “Driver irql_less_or_not equal”. I’ve tried updating both the motherboard network driver for the ethernet and the driver for my PCI-E wireless adapter. Neither resolve this problem and this was not an issue prior to the upgrade.

Driver irql_not_less_or_equal windows 10

Fix Driver irql_not _less_or_ equal error BSOD

Whatever the reason behind this Driver irql not less or equal BSOD error, here some solutions you may apply to get rid of this Blue Screen on Windows 10, 8.1 and Windows 7 computers.

Whenever you face any blue Screen error, the first thing you must try “Disconnect All External Devices” Such as printer, scanner, external HDD, etc ( except keyboard & mouse ) And start windows to check and make sure any external device, Driver conflict not causing this BSOD error.

If due to This Blue Screen Windows Unable To Start Then Try To Boot Windows into Safe mode using Advanced Startup options.

Windows Advanced Options

Safe mode is a diagnostic mode of a computer model that enables users of Windows 10 to enter an altered version of windows. And correct any problems that may be preventing them from entering booting up normally. Now on the Safe mode, you can easily perform Bellow troubleshooting Steps to Fix Driver irql_not_less_or_equal windows 10 BSOD Error.

Update your Device drivers

Updating device drivers (especially the graphics driver) usually solves most of ( almost 70% ) BSOD error on windows 10 computers. Again If the “Driver irql not less or equal BSOD” problem started after a recent windows 10 upgrade ( which mostly causes driver incompatibility issues) And while installing a new device, Or attach/connect to a specific Device. Update or Reinstall the Device driver very helpful solution to deal with this BSOD error.

Reinstall Problematic Driver on Windows 10

The Best recommended way to update your system device driver, visit the device manufacturer’s website ( such as if you are using a Laptop visit, Dell, HP, Lenovo etc, For Desktop computers visit the motherboard manufacturer website ) Download the latest available Driver version and save it on the local drive.

Now open Device Manager ( Windows + R, type devmgmt.msc and ok ) Here expend the Driver ( for example Display Driver ) right-click on the currently installed driver and select uninstall. Do the same with other Drivers especially ( Network Adapter And Audio Driver ) After uninstalling All problematic drivers Restart your Computer.

Uninstall Graphic Driver

Now on next start to install the Driver, previously downloaded from the manufacturer’s website. Now Restart windows and start normally check BSOD error gone.

Update Device Driver on Windows 10

Also, you can use ( Device manager -> expend Display driver -> right click on installed graphics driver ) the option update driver and select “Search Automatically for updated driver software” option ( when you are connected to the internet ), And let windows to check for the latest available driver. If found any windows automatically download and install them for you. After that restart windows and check. If driver incompatibility causing this “Driver irql not less or equal” After reinstall or Update device driver you never face any BSOD error.

Update display driver

Uninstall Security software And Recently installed Applications

If updating and reinstall the device driver didn’t fix “Driver irql_not_less_or_equal” BSOD then here are some other solutions you must try Such as temporarily uninstall the Security software (Antivirus) if installed. Also if you notice the problem started after installing a third-party application, ( may this application is not compatible with the current OS version ) we recommend to uninstall recently installed applications and check this helps.

To uninstall recently installed applications or Antivirus software Press Windows + R, type appwiz.cpl and ok to open the Programs and Features window. Here right-click on the recently installed application and select uninstall.

Check Disk Drive Corruption/Error using CHKSDK command

In some cases, these BSODs can be attributed to hard drive corruption. Over time, your PC can develop errors on the hard disk drive due to repeated, unintended misuse. Improper shutdowns, “hard closing” programs, corrupt or incomplete installation of software (eg. Windows Operating System), power outages can corrupt your file system and stored data. As a result, you may experience blue screen errors associated with IRQL_NOT_GREATER_OR_EQUAL.

To Deal with issues like this Microsoft Added A convenient utility called “chkdsk” (“Check Disk”) to scan and repair hard disk corruption. We recommend running chkdsk command (with add extra parameter /f /r) to force chkdsk scan and fix the Disk driver problems itself.

Open Command prompt as administrator then type chkdsk C: /f /r and hit the enter key.

Check disk utility

Tip: CHKDSK is the short of Check Disk, C: is the drive letter you want to check, /F means fix disk errors and /R stands for recover information from bad sectors and x for dismount the disk )

When it prompt “Would you like to schedule this volume to be checked the next time the system restarts? (Y/N)”. Answer Yes to that question by pressing the Y key on your keyboard and press Enter. Restart your computer. After restarting, the disk checking operation should start. Wait until Windows check your disk for errors.

Perform System Restore

Some Users report repair corrupted system files by running DISM command  “dism /online /cleanup-image /restorehealth ” and sfc utility helps them to fix the issue. Also running Memory Diagnostic Tool does the same job for Some other users.

If applying All these solutions didn’t fix “Driver irql not less or equal” Blue screen error. Then Performing System restore is the ultimate solution. Which reverts back your system configuration to the previous working state where windows working smoothly.

Note: you can only perform System restore if you have previously turned on the System protection Feature. And didn’t delete old System restore points.

To perform System restore open control panel -> control panel items -> Recovery -> click on Open System Restore and Fallow on-screen instructions to perform System restore on windows 10, 8.1 and 7. After perform System restore Check Windows Started normally and there is no more Driver irql not less or equal BSOD Error While playing games or working on heavy graphics programs.

Perform System Restore

To Avoid any BSOD error on windows 10 computers, Always install trusted applications. Didn’t use Cracked, pirated software, Always perform ( mostly every week ) full system scan with latest updated antivirus software. And make sure windows have installed the latest patch updates.

Did these solutions help to fix “Driver irql_not _less_or_ equal error BSOD” on Windows 10? Let us know which option worked for you.

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