B860 Pro-A Windows 11 installation issues
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=113432
Printed Date: 04 Mar 2026 at 2:45pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: B860 Pro-A Windows 11 installation issues
Posted By: dotmatrix
Subject: B860 Pro-A Windows 11 installation issues
Date Posted: 11 Jan 2026 at 2:30am
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Hi. new user here. I have a problem with my new PC build and I would be very happy if you could help me. Hardware: - G.Skill Trident Z5 RGB DDR5 SDRAM 48GB kit CL40 On-die ECC DIMM 288-PIN (F5-8000J4048F24GX2-TZ5RW) - INTEL Core Ultra 5 245KF 6+8 Kerne 4.2 GHz Sockel LGA-1851 CPU Boxed (ohne Kühler) (BX80768245KF) - Asrock B860 Pro-A Intel B860 LGA 1851 (Socket V1) ATX (B860 Pro-A) - PSU MWE Bronze V3 750W (MPE-7501-ACABW-3BEU) - Asus GT1030-SL-2G-BRK graphics - Kingston NV3 M.2 NVMe Gen 4 internal SSD (500GB) - Kingston SA400 960gb SATA ssd drive I'm trying to install Windows 11 on either drive. - When the drives are visible on the simple front page of the bios. - Both setup with empty gpt partitions. - when running the windows 10 installer it sees the drives and I can install windows 10 on the sata ssd at least - when running the windows 11 installer it cannot see the drives initially - after loading the correct driver it sees the drives in both diskpart, they can be accessed via cmd and the "browse for device driver" window but the windows 11 installer does not want to continue. I have tried a lot of different bios settings. disabling VMD global mapping disabling secure boot all sort of things why does the standard windows 11 installer on a bootable usb build with the newest windows media cration tool not want to install? any help is much appreciated. thanks in advance Martin Vestergaard |
Replies:
Posted By: dotmatrix
Date Posted: 11 Jan 2026 at 3:49am
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newest version of bios, 1.27. have contacted asrock support, not much help there. windows 10 can also be installed on the nvme drive in m2_1 slot I have tried running the windows 11 installer with the bios set to defaults, won't install |
Posted By: dotmatrix
Date Posted: 21 Jan 2026 at 5:21am
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ok. maybe none of you know, which is ok. Asrock support certainly didn't know anything I couldn't google and hadn't tried allready. Instead I will tell you what I ended up doing. Windows 10 installed perfectly, first try no special settings, on the right disk and worked with most if not all drivers. I fixed the rest of the drivers to have a flawless device manager and then I ran the Windows 11 installer from the usb directly from within Windows 10 and then it ran through perfectly. So now I have Windows 11 and have moved on. |
Posted By: Xaltar
Date Posted: 21 Jan 2026 at 6:17am
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Thanks for the update dotmatrix, sorry I couldn't help, bit of a headscratcher... ------------- 
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