The 'IRQL_NOT_LESS_OR_EQUAL' blue screen error that occurs after Windows update is caused by a conflict between device drivers and antivirus programs. If you have not updated Windows and an error 'driver irql not less or equal' appears, click here to solve it.
Level 1. Running Windows Recovery Environment (WinRE)
To run Windows Recovery Environment (WinRE), Windows must not restart twice in a row. And within 2 minutes after booting, Windows shuts down twice in succession, and it can be run after rebooting. The method is as follows.
1. Press and hold the power of the PC or laptop for 10 seconds to turn off the power.
2. Turn the power back on.
3. After the PC restarts, press and hold the power button for 10 seconds before the Windows logo appears. Then the power is turned off.
4. Turn the power back on.
5. After Windows restarts, turn off the power button again for 10 seconds before the Windows logo appears again.
6. Turn on the power.
7. Enter the Windows Recovery Environment (WinRE) screen. If the WinRE screen does not appear, repeat the above process one more time.
8. On the [Choose an option] screen, click [Troubleshooting].
9. Click [Advanced Options].
10. Click [Startup Settings], and then click [Restart].
11. When it restarts, select 5 in [Options] or press [F5] to select Safe Mode (with networking). Once logged into Windows, begin the steps below.
Step 2. Remove the recent updates list
1. Click the search box to the right of the Windows Start button, type 'Control Panel' and press Enter.
2. Click [Programs and Features].
3. Click [View Installed Updates] on the left menu.
4. On the right, click [Install Date] to sort the most recently updated list at the top.
5. Right-click the most recently updated list and select [Remove] to delete it.
6. When the deletion is complete, restart the PC. This can solve the 'driver irql not less or equal' blue screen error.
If the 'IRQL_NOT_LESS_OR_EQUAL' blue screen error reappears, it is not a Windows update problem. It is an error caused by device drivers, memory, anti-virus programs, etc., so click here and follow the instructions to solve it.
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