Windows 10 UEFI Boot
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=4458
Printed Date: 21 May 2024 at 9:42am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Windows 10 UEFI Boot
Posted By: Alexium67
Subject: Windows 10 UEFI Boot
Date Posted: 21 Feb 2017 at 11:36am
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" rel="nofollow - I just bought Windows 10 on USB stick and found that stick not bootable in UEFI mode. No stick in boot devices list. In Legacy mode all ok. In other time my other sticks are visible in boot menu in any mode (both UEFI & Legacy). What is it? Problem with MS stick or motherboard compatibility? Specs: Intel Core i5 7600, ASRock B150M Pro4, BIOS version - 7.10, 8Gb DDR4, ASUS Radeon RX480 4Gb |
Replies:
Posted By: wardog
Date Posted: 21 Feb 2017 at 12:06pm
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" rel="nofollow - Hello, This is after the "MS stick' being placed in a USB 2.0 port at the rear I/O panel? |
Posted By: Alexium67
Date Posted: 21 Feb 2017 at 12:55pm
| My motherboard haven't any USB 2.0 port on the back panel. Only two on the front. All back USBs are blue. |
Posted By: wardog
Date Posted: 21 Feb 2017 at 2:19pm
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" rel="nofollow - Your case, does it have USB 2.0 ports and have you connected them? If so, use one of the cases USB 2.0 port. Dare I ask from where you bought the stick with Win10? Link? |
Posted By: Alexium67
Date Posted: 21 Feb 2017 at 2:49pm
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My case have only two 2.0 ports on the front panel (and one 3.0 also). But it is not any matter because my old 2.0 flash drives can boot in uefi mode. I bought Windows in our local shop. Here is link: dns-shop.ru. There were common paper box with one small guide book, card with key, and USB stick with blue end, holo etc. I think it is some thing wrong with that stick. I'll try to boot it on other pc, and contact with shop support and ms support. |
Posted By: CPL0
Date Posted: 21 Feb 2017 at 4:12pm
I had the same problem with my X99 Taichi see this http://forum.asrock.com/forum_posts.asp%3cTID=4432&PID=23696&title=x99-taichi-nvme-wont-recognize#23696" rel="nofollow - post .
Copying the 64-bit folder to the root of another FAT32 flash drive and using that worked for me. |
Bought W10 which came with some cheap looking USB flash drive instead of
the usual DVDROM. That USB flash had both 32-bit and 64-bit versions
but didn't play well with the X99 so copied just the relevant 64-bit
section onto another FAT32 formatted flash and all was good. Installed
W10 with GPT and CSM with no problem.Posted By: ASRock_TSD
Date Posted: 21 Feb 2017 at 7:57pm
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Dear Alexium67, Greetings, this is ASRock TSD. About how to create bootable USB media from ISO for OS method, please refer to the link below: http://www.microsoft.com/en-us/download/windows-usb-dvd-download-tool" rel="nofollow - https://www.microsoft.com/en-us/download/windows-usb-dvd-download-tool According to your question, we also provide some suggestions to verify: 1. Please re-boot the system then press [F11] to check if the bootable USB can be selected UEFI mode in Boot menu. 2. Please plug the USB device into other USB ports to verify. 3. If possible, please use another bootable USB device to verify. 4. If possible, please use this USB to install on another motherboard to make sure this USB can install successfully. 5. If possible, please re-make a bootable installer USB for verifying. Thanks! All the best, ASRock TSD |
Posted By: Alexium67
Date Posted: 22 Feb 2017 at 4:50pm
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Thanks you all. It were broken or wrong recorded USB stick. Maybe fabric defect or something else. So I'll record new one using MS utility or copy x64 folder to the root another FAT32 drive. |
Posted By: Alexium67
Date Posted: 23 Feb 2017 at 6:04am
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" rel="nofollow - Simple copying original USB drive to another helped me. I don't know what is reason for the problem. Hardware of the MS stick?.. Problem solved. |
Posted By: wardog
Date Posted: 23 Feb 2017 at 6:29am
Glad to hear it was something as simple as it was.  |
Posted By: parsec
Date Posted: 23 Feb 2017 at 12:02pm
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This is absolutely ridiculous on the part of Microsoft, if they cripple their own installation media from UEFI booting. First, and FYI about the USB port being used. The Intel 100 and 200 series chipset boards will only have USB 3.0 ports on the IO panel. As long as you use one of the USB 3.0 port on the IO panel on these boards, you'll be fine with a USB flash drive as the installation media... as long as the USB flash drive is NOT one from Microsoft, apparently. I've used Windows 10 ISO download files from Microsoft for as long as Windows 10 was available, and have never had a problem using it for a UEFI booting installation. All I do is have a FAT32 formatted USB flash drive, no larger than 16GB in capacity. They are normally formatted that way from the manufacture. Using the MSoft Media Installation Tool from this page: https://www.microsoft.com/en-us/software-download/windows10" rel="nofollow - https://www.microsoft.com/en-us/software-download/windows10 I run it and follow the prompts, selecting Install on another PC, and save to an ISO file. I don't use the create USB option at the end of the process. Once you have the ISO file, insert the USB flash drive, left click on the ISO folder, and select Mount. If you don't see all the ISO files displayed and highlighted, do that manually. Then left click in the highlighted area and select Send to, and select the USB flash drive. Takes a while but when complete, the USB flash drive will give you the "UEFI:" prefix in the boot order. Did you try, with the MSoft USB flash drive, either setting the CSM option to Disabled, or setting the CSM sub-option, Launch Storage OpROM Policy to UEFI Only? Then restart into the UEFI/BIOS again, and check the boot order for the "UEFI:" entry for the USB flash drive. Or who knows, they may require you to set Secure Boot to enabled. You don't need to do that for a UEFI booting installation. Do you have the Win 10 activation key written down anywhere in the package with the USB flash drive? If so, you could create your own installation flash drive, and use the key in the package. I buy Win 10 disks, use the ISO download, and just enter the key from the package. I'm curious about the MSoft USB flash drive, why it won't cause a UEFI entry to appear. If you look at the folders on it, do you find an efi folder, with boot and microsoft\boot folders in it? Each of those folders should contain a .efi file, one with bootx64.efi, the other with cdboot.efi. If those folders and files are there, which the fix above seems to indicate, then MSoft is screwing something up with these flash drives. ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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Posted By: Alexium67
Date Posted: 23 Feb 2017 at 7:52pm
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Don't worry friend. Problem were solved. I tryed all options in UEFI|/BIOS: CSM, Fast Boot, UEFI only USB etc. That sick just not visible as UEFI boot variable. All folders were fine and files too. Simple copying (1 : 1) to another stick helped me. This another stick were 2.0 but has same folder and file structure as the original. But it booting fine as the UEFI menu item. I fear it maybe small issue in ASRock USB 3.0 controller but... I haven't another MS USB 3.0 original stick for the test. |
Posted By: parsec
Date Posted: 23 Feb 2017 at 9:58pm
" rel="nofollow -
The only possible mistake that could be made I can think of, is if you were using the UEFI/BIOS UI, and only at that point the USB flash drive was connected to the PC. It normally takes a restart of the PC back into the UEFI/BIOS UI before the flash drive is visible in the boot order. Questions for you, just out of curiosity: What did the entry in the boot order of the MSoft USB flash drive look like? Was it, "AHCI: <flash drive name>"? When you used the other USB flash drive, did you get two entries in the boot order for the flash drive? I have both ASRock Z170 and Z270 boards, and like your B150M Pro4, they use the Intel USB 3.0 ports provided by the chipset, no extra USB 3.0 chips on our boards. So if there was an issue, it would be with the Intel USB 3.0 controller that every mother board manufacture uses with the Skylake and Kaby Lake chipset boards. I use various Patriot 16GB USB 3.0 flash drives for Window 10 installations, and have never had that problem. Every Windows 10 installation I do is UEFI booting. You may have noticed that for Windows 10, there is no USB 3.0 driver provided for installation. The Microsoft "in box" USB 3.0 driver is used with Windows 10 only. It would be ironic if MSoft's own USB 3.0 driver provided with Windows 10 had a problem with the USB flash drives they use with their Windows 10 USB flash drive installation product. I believe you that the issue happens, it is just very strange. One thing that might be the cause is the formatting of the MSoft USB flash drive, but again it would be crazy if they were not formatted correctly by Microsoft. But stranger things have happened in the world of PC hardware. I know that people that use Rufus to format and create a USB flash drive Windows installation media can have problems if they do not select the correct formatting options provided by Rufus. ------------- http://valid.x86.fr/48rujh" rel="nofollow">
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Posted By: Alexium67
Date Posted: 24 Feb 2017 at 12:11am
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No, no! I rebooted every time after changing settings. Answers: USB: KDI... bla-bla-bla. Yes. Even Three: one for MSoft drive (USB) and two for another (UEFI and USB) I don't use Rufus for my own flash drive. Just Windows's GUI format tool. Work fine. Anyway I can to test MSoft drive on the work PC with MSI board and USB 2.0 ports on the back. I tried it but not complete - used only unknown front port. Unfortunately shop can't replace MSoft flash drive. Something with the rights. For one experiment I need another USB 3.0 drive. I'll do it next week. |
Posted By: CPL0
Date Posted: 24 Feb 2017 at 12:31am
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USB: KDI-MSFTWindows 10 PMAP No option for UEFI boot, copied to other FAT32 flash drive and both legacy and UEFI options available. A quick test on my MSI laptop with W8.1 and full GPT partitioning also shows only legacy boot option available from the Microsoft Windows10 USB 3.0 installation flash drive. Google sku-kw9-00017 for product detail. |
Posted By: kainatkhan
Date Posted: 21 Nov 2017 at 4:53am
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Just download RUFUS to create a bootable media. After that you follow the steps provided here https://appuals.com/how-to-create-windows-10-bootable-usb-using-rufus/" rel="nofollow - https://appuals.com/how-to-create-windows-10-bootable-usb-using-rufus/ to solve your problem. Hope it helps you out. |
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