UEFI, GPT partition to install Windows 10

    I have been installing the system on a U disk, changing the boot order of bios, and utrliso. Suddenly, one day I found that
after diskpart partitioned the partition, the installation program actually prompted that it could not install to the main partition. Of course, the prompt is that windows
cannot be installed to this partition. The yellow exclamation mark looks at you mockingly.
    Of course, what we need to do is to solve the difficulties, and to solve the problems even if there are no difficulties.
    Google later found out that the installation method was wrong, and they used bios all the time, but now (actually, it has already appeared) changed
to UEFI, and the computers around them were all five or six years ago. Not much to say, the system is installed as follows.
    Regarding the UEFI and GPT, you can search for it.
    1. I used two U disks, one for PE system and one for Windows ISO files.
    Here's a note: two U disks are needed for several reasons, one that the computer does not have an operating system installed.
    The second installation is win10 64-bit, which is just larger than 4G, so the U disk of the fat32 file system cannot be placed in it.
    Third, winPE cannot format the U disk as ntfs. Of course, you can decide according to your own situation.

    2. The boot disk made by the micro PE I used, after booting from pe, it should be noted here that the UEFI boot
    method needs to be set to UEFI, do not select LEGACY+UEFI, and insert the U disk with win10 system in it.
    Mount with virtual CD-ROM software and start setup. I get an error when I open it directly.
   
    3. After startup, it is the installation interface of win10, select the custom installation, press shift+F10 to start the command
    prompt. Use the diskpart command to partition.
        list disk
        select disk 0 Select disk No. 0
        clean Clear disk
        convert gpt Convert to gpt format
        Create EFI partition and system installation partition:
        create partition efi size=100 Create EFI partition, size 100M
        create partition msr size=128 Create MSR partition, the default is 128M
        create and install the primary partition
        create partition primary size=102400 The primary partition is 100G (100*1024)
       
        Other partitions can be divided directly on the command line, or can be divided on the graphical interface, or
        after the system is installed, it can be divided by disk management.

    4. Exit the command line, click Refresh under the graphical partition interface, and then you can see the new partition.
    5. Go directly to the next step to install the system.
    6. The installation key of win10 is: VK7JG-NPHTM-C97JM-9MPGT-3V66T (only for professional version installation, activation is invalid) can also be skipped.

    Installation is complete, call it a day.
    Reference: http://www.beihaiting.com/a/XTJC/WXP/20150722/7207.html