Hi, I have a problem, when i am booting my laptop it is loading and then shows a bluescreen with this title: DRIVER_IRQL_NOT_LESS_OR_EQUAL (epfwwfp.sys) and next it start diagnostic tool and it shows nothing only to restart. Qualcomm Atheros Ar5b125 Driver Windows 10. I installed Windows 10 on it start day and it install good but i restart it and than it wasn't boot. Laptop is: HP Envy 17 - j040ec Before update Windows 8.1 I have many files on disk and i wasn't lose it.

Lexmark X9575 Driver Windows 10 more. If you're getting IRQL_NOT_LESS _OR_EQUAL blue screen error on Windows 10, don't worry. IRQL_NOT_LESS_OR_EQUAL blue screen error would occur randomly especially when you are playing game. This error mostly is caused by faulty drivers, which programmed to access improper.

I need to restore to Windows 8.1 or repair Windows 10. Thanks for help. Sorry for my english i'm from Slovakia. ***Post moved by the moderator to the appropriate forum category.***.