How To Fix Windows 8.1 driver_irql_not_less_or_equal Error
Reader Question: “Hi Wally, Whenever I double click the tv tuner software, I see driver_irql_not_less_or_equal and than the computer restarts after showing a blue screen.” – Diana B., USA
Before addressing any computer issue, I always recommend scanning and repairing any underlying problems affecting your PC health and performance:
- Step 1 : Download PC Repair & Optimizer Tool (WinThruster for Win 10, 8, 7, Vista, XP and 2000 – Microsoft Gold Certified).
- Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems.
- Step 3 : Click “Repair All” to fix all issues.
Setting up weekly (or daily) automatic scans will help prevent system problems and keep your PC running fast and trouble-free.
Wally’s Answer: The driver_irql_not_less_or_equal errors appear in a few different ways. They usually appear when you start a certain program. Here we will see a few common driver_irql_not_less_or_equal errors and how to fix them.
Problem
The error shows the blue screen (BSoD) and restarts the computer.
Cause
It is usually caused by problems with drivers.
Windows 8.1 driver_irql_not_less_or_equal
This error can appear every time a certain program is launched. It shows the blue screen and restarts the computer. You can fix this by keeping Windows 8.1 updated and keeping device drivers up to date.
How To Use Windows Update In Windows 8.1
- You can open Windows Update by pressing the Windows Key and typing windows update. Click Windows Update.
- Click Check for updates
- Wait while Windows is checking for updates, click Install Updates.
- If you don’t want to install all updates then click the important updates link. Choose among the important updates and click Install.
In Windows Update, you can also view hidden updates, update history, and other things.
How To Update All Device Drivers
All you need to do to update device drivers is to go to your computer manufacturer’s website and look for drivers. Download and install the drivers from there. You can also use utility software which assists you to update device drivers by detecting, downloading, and installing automatically.
Faulty Device Drivers and Software
If you have installed any new drivers lately then try uninstalling them first. You can do this by going to the device manager, right-clicking the device, and clicking Uninstall. If you recently installed new software that is malfunctioning then you should try uninstalling that software and see if that fixes the problem.
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Is Your PC Healthy?
I always recommend to my readers to regularly use a trusted registry cleaner and optimizer such as WinThruster or CCleaner. Many problems that you encounter can be attributed to a corrupt and bloated registry. Happy Computing! 
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About the Author
Wally PhillipsWindows Wally is a helpful guy. It’s just in his nature. It’s why he started a blog in the first place. He heard over and over how hard it was to find simple, plain-English solutions to Windows troubleshooting problems on the Internet. Enter: Windows Wally. Ask away, and he will answer.
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