- #Error driver irql windows 10 how to
- #Error driver irql windows 10 install
- #Error driver irql windows 10 drivers
Double-click on the disk drive where Windows is installed. At first, Open the Device Manager as shown in method 1. 
Then, See if it fixes the driver IRQL not less or equal BSOD or not. If you don’t find other ways, you can consider disabling write caching of your hard disk or SSD. This method is not recommended for most situations.
#Error driver irql windows 10 how to
However, If you want to know about more disk related problems, read: How to Find and Fix Hard Disk Problems Method 6: Disable Write Caching It may take a while to complete the process.
At first, Open the command prompt as administrator. So, It has a good chance to fix this BSOD too. It automatically detects and fixes common disk problems. In this case, As a first step, you can run the chkdsk tool. Sometimes, Disk problems may lead your PC to have this “Driver IRQL Not Less Or Equal” error. You also can boot into clean boot to identify the problematic programs and solve your problem. Method 4: Disable Antivirus/Firewall or Run Clean BootĪs you are not sure what is causing that BSOD, you can temporarily disable or uninstall the antivirus or firewall program to see if it helps. Make sure, In recovery mode, you have navigated to Troubleshoot > Advanced Options > Command Prompt. Then, Follow the instructions from that link. In this case, Insert bootable pendrive, choose repair your computer when windows setup window appears. You can either follow the method one from here or use a bootable Windows media. In this case, You can boot into recovery mode and delete these files. Because The DRIVER IRQL NOT LESS OR EQUAL may appear before Windows starts properly. Some users, May not be able to access Windows. If you use ESET, you will see epfwwfp.sys. To do it, you can simply go to C:\Windows\System32\drivers\ and find these. So, You can delete them and see if it solves the problem. The most common culprits are epfwwfp.sys or bddci.sys. You can find it out, but that would be a bit long process. It is because something else is causing a blue screen error on your PC. In some cases, the first two methods may fail. Method 3: Delete epfwwfp.sys/bddci.sys (For Bitdefender/ESET Antivirus User) If you are lucky, it will solve DRIVER_IRQL_NOT_LESS_OR_EQUAL. Windows will automatically re-install the driver. #Error driver irql windows 10 drivers
Then, Right-click on the Network Drivers and choose “Uninstall device.”. At first, Open the Device Manager like method 1. #Error driver irql windows 10 install
Then, Install it again to solve your problem. In case the first method fails, try to uninstall the network drivers.
Go to the Driver tab and click on Roll Back. Then, Right-click on the network drivers and go to their properties one by one. 
First of all, Open the start menu, type devmgmt.msc, and hit enter. However, You also can roll-back drivers manually. It also can help you to uninstall or roll-back drivers. Especially, the Driver booster has some cool features that allow you to do much more things. These tools can regularly update your drivers automatically and help your PC to run smoothly. However, To update network drivers or any other drivers, I recommend using the Driver Booster, Driver Easy, Driver Talent, OutByte Driver Updater, etc. 
If you don’t know how to do it, follow this article: How to Update Drivers So, As your first attempt to fix driver IRQL not less or equal, you should update it. For some users, rt640圆4.sys, which is a Realtek Network Adapter driver, causes the problem. Corrupted network drivers are mainly responsible for this type of BSOD errors.
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