https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Wed, 29 Apr 2026 08:55:25 +0000 Thu, 22 Jun 2023 20:44:47 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=25929 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=25929&PID=105300&title=no-boot-option-in-bios#105300 Author: threadzipper1957
Subject: 25929
Posted: 22 Jun 2023 at 8:44pm

2 boot drives will create a conflict, and I suspect your old OS drive, was installed in MBR mode.
When CSM is disabled, the bootmenu, will only show devices that are installed under GPT (UEFI) Mode.
What I would do, is.
Mount only the old M.2, and use default BIOS settings, and see if it boots, if yes, You can maybe upgrade to Windows 11 with the old M.2.
Once this is done, You can replace the M.2 with the new one, and remove all partitions.
If You then add the old drive, it should start Windows 11, and You can clone the old M.2, to the new one
Fore cloning You can use the free version of macrium reflect https://www.macrium.com/reflectfree
It can work under Windows, and I have used it a few times.
]]> Thu, 22 Jun 2023 20:44:47 +0000 https://forum.asrock.com/forum_posts.asp?TID=25929&PID=105300&title=no-boot-option-in-bios#105300 https://forum.asrock.com/forum_posts.asp?TID=25929&PID=104951&title=no-boot-option-in-bios#104951 Author: Mark2m
Subject: 25929
Posted: 26 May 2023 at 12:56am

This is my first build in 7 years, and first with ASrock. I have Windows 11 residing on M2 . My problem is I also have a SSD drive (old computer)Windows 10 recognized on the new computer with critical software that I cannot copy, port, migrate etc. I cannot find the option on the Bios to choose my SSD to boot. The last info I received via You Tube and this forum is to CSM enable than no information after that.
Can anyone help. Thank you]]> Fri, 26 May 2023 00:56:03 +0000 https://forum.asrock.com/forum_posts.asp?TID=25929&PID=104951&title=no-boot-option-in-bios#104951