Can't load win 10 usb
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=10583
Printed Date: 05 Aug 2025 at 7:10pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Can't load win 10 usb
Posted By: Foesaken
Subject: Can't load win 10 usb
Date Posted: 02 Jan 2019 at 4:39am
Hi all.
I'm having issues trying to load windows 10 pro 64 bit on my new setup. This is my first time loading windows from a USB and first time trying to load windows onto an m.2 drive. Every time I try to load from usb I get a screen that says:
An operating system wasn't found. Try disconnecting the drives that don't contain an operating system. Press any key to restart.
Here is my setup:
Asrock Taichung ultimate z390
i9 9900k CPU
Evga RTX 2070
Samsung 970 NVMe 2TB
Evga 1000 G3
Corsair 2x 16GB 3200 ddr4 ram
In bios I get code a6 from dr debug and when I try to load from usb I get code a3
|
Replies:
Posted By: Foesaken
Date Posted: 02 Jan 2019 at 4:58am
|
My boot priority is usb, Samsung 970, UEFI. My m.2 he'd is dectected in bios. My bios version is P1.30.
|
Posted By: Foesaken
Date Posted: 02 Jan 2019 at 10:45am
I have updated the bios to 1.80. CSM is enabled and Secure Boot is enabled. SATA Controller is Enabled. SATA Mode Selection is set to AHCI as I only have 1 M.2 drive. I have tried Advanced > USB Configuration > Legacy USB Support Enabled, UEFI Setup Only, and Disabled. I turned it back to legacy enabled.
I am using a USB drive windows 10 pro 32/64 bit bought from Microsoft. I inserted this drive into another PC and it works. I just can get my bios settings right to get this USB to boot.
|
Posted By: RLGL
Date Posted: 02 Jan 2019 at 10:04pm
Boot manager settings are...?¦â€??
-------------
Asrock Z370 Gaming K6,Intel i7 8700K,
Asrock x570 Taichi
|
Posted By: Foesaken
Date Posted: 05 Jan 2019 at 9:52am
|
It was a bad usb installation from Microsoft. I created my own installation USB drive and it works fine. For some reason the Microsoft drive will work with a pic with windows already on it. But not a fresh install. My issue is fixed
|
|