unable to boot windows 10 on Z270 Extreme 4
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=10593
Printed Date: 05 Aug 2025 at 7:11pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: unable to boot windows 10 on Z270 Extreme 4
Posted By: c.ozzy
Subject: unable to boot windows 10 on Z270 Extreme 4
Date Posted: 03 Jan 2019 at 2:01am
Hi at all,
i'm an owner of:
Mobo: Asrock Z270 Extreme 4
CPU: Intel BX80677I77700 Intel Core i7 7700, Quad Core, 8 Thread, 3.6GHz, 4.2GHz Turbo, 8 MB Cache, 1150MHz GPU, 65W
PSU: Corsair TX850M Alimentatore PC, Semi Modulare, 80 Plus Gold, 850 W
RAM: Corsair 16 GB DDR4, 2400 MHz
HDD: Seagate 500 GB
I've prepared a bootable usb by rufus, gpt and uefi partitioned. The UEFI of z270 has been modified as follows:
sata mode selection: AHCI
Fast boot: disabled
CSM: enabled
Launch PXE OpROM Policy: UEFI only
Launch Storage OpROM Policy: uefi only
Launch Video OpROM Policy: UEFI ONLY
When the machine is booting i press F11, select UEFI WINDOWS 10 Installer USB, format the hdd and install windows.
When the machine reboot I'm not able to boot in windows, after logo show i face every time a black screen with the symbol _ in thw middle of the screen. Is there something I'm messing with? I've downloaded several versions of Windows 10 by Media Tool Creator without any success..
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Replies:
Posted By: RLGL
Date Posted: 03 Jan 2019 at 10:12am
Set the cmos to defaults, what happens?
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Asrock Z370 Gaming K6,Intel i7 8700K,
Asrock x570 Taichi
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