Installing Win 10 x64 using a flash memory Solved

Page 2 of 2 FirstFirst 12
  1. Bree's Avatar
    Posts : 11,484
    10 Home x64 (1903) (10 Pro on 2nd pc)
       #11

    tomyfr said: View Post
    ...what will happen if the electricity is cut in the middle of BIOS updating? It's not very rare here?
    What parts will get damage? Programs (on C or D drives) or even hardware parts too?
    Just the bios will be corrupted - turning the PC into an expensive brick.


    Fortunately Asus have a tool for that...

    Recover the BIOS by using ASUS CrashFree BIOS 3 | Official Support | ASUS Global
      My ComputersSystem Spec

  2.    #12

    Thanks so much. I will update it as soon as posible. :)
      My ComputerSystem Spec

  3.    #13

    tomyfr said: View Post
    Thank you all very much.
    I changed the style of the flash memory to GPT and installation was successful.


    In summary, if the HDD/SSD style is MBR, the installation media (whether it's a DVD or flash memory) must also be in the MBR style in order to be able to install Windows (7/10)
    And the same scenario for GPT.
    Do you agree?
    Not at all. If the Windows 10 USB flash drive is MBR with a FAT32 partition marked as active it will be universally bootable in legacy BIOS, UEFI and UEFI in CSM modes. The reason your flash drive had issues the first time was because it was formatted as NTFS, not because it was MBR.
    Last edited by NavyLCDR; 11 Mar 2019 at 19:10.
      My ComputerSystem Spec

  4.    #14

    Thanks so much. So a USB flash drive with the MBR style and a FAT32 partition is great because it can install Win 10 (or 7) on all PCes regardless of their HDD/SSD style or motherboard settings! :)

    One quesion on active. On Diskpart we active the flash memories, but consider a corrupt and completely defective PC and we want to install Windows using our flash memory. I suppose all it needs is to put the flash into one USB port of the PC and turn the PC on and follow the instuctions for installing the Windows poured into the flash beforehand, Right?
    So what is the role of that activeess, simply, please?

    Incidentally, the reason I didn't choose "FAT32" for the flash, in the previous step, was that the Rufus app doesn't have a FAT32 option for those specs:

    Click image for larger version. 

Name:	captue.png 
Views:	73 
Size:	37.5 KB 
ID:	227016
    Last edited by tomyfr; 11 Mar 2019 at 15:41.
      My ComputerSystem Spec

  5.    #15

    @tomyfr,

    Here are the reasons that a Windows 10 installation USB flash drive needs to be MBR partitioned with a FAT32 partition marked as active in order to be universally bootable:

    1. Legacy BIOS systems and UEFI systems in CSM (Compatibility Support Module) mode cannot boot from GPT drives. The drive must be MBR. UEFI mode, however, can boot drives in either MBR or GPT format. That's why MBR is required.

    2. Most computers in UEFI mode require a FAT32 partition to boot from. Legacy BIOS (and a few, but not all UEFI) can boot from NTFS or FAT32. So in order to be compatible with those UEFI systems that don't have NTFS boot support, the partition on the flash drive needs to be FAT32.

    3. Legacy BIOS (and CSM mode) computers look for a partition flagged as active to boot from. If they don't find a partition flagged as active, they won't boot. That's why the FAT32 partition on the MBR type USB flash drive must be marked as active. UEFI does not look for the active flag - it looks for specific files in the partitions. Also, GPT drives do not allow partitions to be marked as active - thus another reason the USB flash drive must be MBR.

    Now, if the user only desires to have the standard Windows 10 installation USB flash drive, I personally see no benefit in creating a flash drive that is not universal in it's boot capability. And that is why I cannot recommend that Rufus be used to create it. It is absolutely not necessary and many users, such as yourself, create flash drives that their computers cannot use because they choose the wrong options in Rufus. Creating the USB flash drive without Rufus is extremely easy:

    1. Just let the Microsoft Media Creation Tool create it for you:
    Download Windows 10
    "Download tool now", run the tool, let it create the flash drive for you. NOTE: it will erase the flash drive!
    OR

    2. If you saved the ISO file from the media creation tool and want to make a flash drive from the ISO file, the commands are:
    diskpart
    list disk
    select disk # <- replace # with the actual number of the flash drive
    clean <- this will erase the selected disk - make sure you selected the flash drive above!
    create part pri
    format fs=fat32 quick
    active
    assign letter=t <-note if T: is already used on your system, select another letter
    exit
    exit

    Then mount the Windows ISO file and copy all the files and folders from the mounted ISO file to the USB flash drive, should be letter T: if you did not change it.

    That's it - you have a flash drive that will boot in legacy BIOS, UEFI and UEFI in CSM mode.

    You might ask, why would I need CSM mode? CSM mode is used to boot a UEFI computer from a drive that does not have the files required to boot in UEFI mode, but does have the files required for booting in a legacy BIOS system.
      My ComputerSystem Spec

  6.    #16

    Thanks so much for your guidance and explanations. I learnt good stuff from them. I appreciate your dedicated time for that. :) I also did the job. :)
      My ComputerSystem Spec


  7.    #17

    One new question in this case.
    Through the above way I made my USB bootable and active and pasted the contents of a Windows 10 at the time, and it's worked well as yet.

    Now I want to paste a new (updated) win 10 on that USB memory. I think all is needed is to paste the contents of the new Window on it and nothing else is required, because it's in FAT32 and set as active, so it's not needed to (clean) re-format it. Right, please?
      My ComputerSystem Spec

  8.    #18

    tomyfr said: View Post
    One new question in this case.
    Through the above way I made my USB bootable and active and pasted the contents of a Windows 10 at the time, and it's worked well as yet.

    Now I want to paste a new (updated) win 10 on that USB memory. I think all is needed is to paste the contents of the new Window on it and nothing else is required, because it's in FAT32 and set as active, so it's not needed to (clean) re-format it. Right, please?
    I would just run a quick reformat of it as FAT32. You don't need to go through and do the diskpart steps. But if you also did just copy and paste over all the existing files, that would work too. I just like to do the quick format first to make sure there won't be any "orphan" files left over from the old version that might not be included with the new version.
      My ComputerSystem Spec

  9.    #19

    Thank you for your answer.

    I just didn't want to format the flash because there is much other data on it. So I want to remove the prior Windows files and copy the new one's files on the flash. This it will still be both FAT32 and Active. Not?
      My ComputerSystem Spec


 
Page 2 of 2 FirstFirst 12

Related Threads
Source: https://newsroom.intel.com/news-releases/micron-intel-extend-their-leadership-3d-nand-flash-memory/
I have 2 Kingston 16GB flash memory sticks. One of them (along with 9 other USB flash memory sticks I have) get mounted as drive G: by Windows. The other Kinsgton drive gets mounted as I:. In the past, both Kingston devices acted just like all...
So I know you can install windows through a Flash Drive. I wanted to know if there was anyway to use a extra SSD as a Multiple Partition "Containing Different Windows and standard drivers for that OS" as a bootable installer. Mainly if I'm...
Solved Fake memory on flash drives in Drivers and Hardware
I have recently bought a 32gb micro sd card from eBay and was wondering if there is some kind of check I can do to make sure it has correct memory on it, I have heard that some of the sd, hard drives and flash cards from eBay are being faked and...
Since up loading to 10, I have had a few BODS some with or without a warning message that there is insufficient memory space, but memory diagnostics show no issues. Here are the dumps from two of the latest incidents: 29213 29212
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 03:20.
Find Us