work your way down the list until the IRQLNOTLESSOREQUAL in Windows 7 problem gets fixed.
1 Enter Safe Mode with Networking - 2 Run SFC Scannow, 3 Update your device drivers, 4 Check disk errors
- Enter Safe Mode with Networking
Make sure your computer is off. Press the power button to turn on your PC and immediately press F8 at a 1-second interval. until the menu appears. Press the arrow keys to navigate to Safe Mode with Networking and press Enter.
Now you’ve booted up in Safe Mode with Networking complete step 2.
Step 2: Run SFC Scannow to replace missing or corrupt windows system files.
To run SFC Scan:
On your keyboard, press the Windows logo key and type cmd. Then right click on cmd and click Run as administrator.
Click Yes when prompted to confirm.
In the command prompt window, type
(space between c and / ) press Enter.
It will take some time for the SFC to replace the corrupted system files with new ones if it detects any. When finished restart your computer and see if the BSOD have stopped. If not then move on to Step 3.
Step 3: Update your device drivers Corrupt drivers a common cause of the IRQLNOTLESSOREQUAL
You can update your drivers manually by going to the hardware manufacturers’ websites, and searching for the latest drivers for all your hardware. be sure to choose the drivers that are compatible with the exact model number of your hardware, and your version of Windows system.
Restart your computer and see if the IRQLNOTLESSOREQUAL blue screen of death issue has been resolved. if not then move onto step 4
Step 4: Check disk errors
The disk error scanning takes only a few minutes. But fixing any errors can take HOURS to complete. Make sure you have plenty of time aside.
press the Windows logo key and E at the same time. Then right-click on Local Disk (C:) and click Properties.
Click the Tools tab, Click Check. Make sure to tick BOTH boxes in the pop-up window and click Start.
Follow the on-screen instructions for Windows to detect and fix the errors found.
Restart your computer and see if this IRQLNOTLESSOREQUAL blue screen ever occurs again.