What I started off trying to do is to use a MacBook's Bootcamp to run Win10 on it.  There isn't room for Win10 on the MacBook's internal disk, so I've been trying to make a USB with a copy of Win10 on it.  I got nowhere with trying to use the BootCamp Assistant to do that, and a bit of googling got me to WinToUSB.  But I'm getting nowhere with that either, because:

I've created a Win10 ISO image and used the Windows Installation USB Creator to put the image onto a Lexar 128 Gb USB drive.

My normal Win10 PC will boot from the USB fine, and enters the Windows SetUp program.  Where I run into the sand is at the step where I'm supposed to choose a partition to install Win10 onto.  What I want to do, of course, is to install it to the USB itself, but that's the one disk that the drop-down list of available disks doesn't list.  I've no idea whether the USB would be listed if there was space for another partition on it, but the Win10 Disk Management utility says there's no free space on it.

So I'm beginning to wonder if it's even possible to install a runnable version of Win10 on a bootable USB drive.  So my first q is wherther that is possible or not and, if it is, my next question is how to do it, seeing as the Win10 SetUp program won't give the option of installing it on the USB?  

I hope that's all clear,

Thanks Martyn

When I try and create a Windows To Go Drive, I cannot ever select the system and boot partitions. It selects them for me and it's locked so that I cannot change it. I have tried MBR for BIOS, GPT for UEFI, and MBR for BIOS and UEFI. Nothing works. And the resulting drive is never bootable. What the heck?

Error message: Disk type cannot be identified (0x0001003800950000)

Version trying to install: Windows 8.1 ( single language ) x64

Device to install to: HGST 1TB HDD ( using a usb to sata adapter )


Followed the guide perfectly and when I got to the section about selecting partitions I started running into issues. First there was no option to select for ESP . Googled how to make an efi and then made a 100mb fat32 partition solving that issue. Then when I selected the boot partition and tried to hit next I got another message saying windows or a file with that name existed already so I needed to hit check format box. Checked format box and now I'm running into the above message and I don't see what's wrong or how to fix it. I read someone else had a similar error message but with a different code. I checked and the HDD IS GPT scheme.

IF you require more info please let me know. THANKS!

I could not solve this problem.Running administrator, disabled antivirus, UAC completely turned off.
When take a look in user log data i saw this issues.

I’m trying to use the backup in EasyUEFI free to backup the changes I’ve made to the boot order, but it seems to be stuck at 72%. Why is this taking so long? And why did it get stuck?

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Hello guys,

I have a problem and i would like to solve it. I bought today a new usb flash drive (Lexar s75 JumpDrive USB 3.0 64 gb) and i used wintousb program.
I just wanted to install windows 8.1 to my usb flash drive. I followed the instructions. I chose .iso file then i click next. After that i chose my usb flash drive and a prompt message appeared and i click to GPT option with VHD option enabled. After that i click next and the process began.
I tested Windows 8.1 and was really really slow... so i decided to format the usb flash drive. I switched back to my main windows and i formated it.
The problem that i have now is.. my usb flash drive is very slow.
1. I use my flash drive in 3.0 usb port..
2. I have enabled in device manager > disk drives > Lexar usb > Properties Tab > Better Performance .
3. The format that i did was exFAT with 128 kilobytes allocation unit size. (I have perform the format procedure with Windows / Rufus / hp flash drive format tool)
4. In Disk Management when i choose the Lexar Usb drive, it says that it is a healthy (Primary Partition).
5. I check for bad sectors but everything is fine.



I attach an image with a test that i perform to check my usb flash drive write/read speeds. When i trying to transfer a file the speed starts with 20 Mb/s and then it drops to 200 kb/s and then back to 20 Mb/s or 30Mb/s and then again back to 500 kb/s. Please can you help me to bring back the speed of my flash drive?

Hi,

I have been using WinTo USB without any issues, then suddenly I get the error:
Failed to run system API. (0x00000015003100000)

I start the application with "run as administrator", my user is local administrator, I have stopped the virus software and added and exception to the virus scanner (alvira) for the application and I still get this error? What can I do next?

My log file is attached.

Please help - I am going bonkers!

Thanks,
Helicopter

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  user.zip (Size: 43.42 KB / Downloads: 3)

When I use WinToUSB and create a WinToGo USB drive from a Windows 10 ISO for example, I see that a VHD file is created on the USB drive from which the OS boots. Now my question is, whether we can add a few more VHDs to that same USB drive, so that we can choose which of the VHDs I can boot up from, at startup ?

For example, I want to create a bootable WinToGo USB of Windows 10 using WinToUSB. SO I get an USB containing a VHD file.

Now I can create another such similar WinToGo on a different USB drive, That drive will also contain another VHD file.

Now, I want to add that second VHD also to the SAME [first] USB that WinToGo that I made, and I want the bootloader to ask me at startup as to what VHD I want to boot from...

Can you please tell me how I can do this ?

EDIT:

I have already seen this thread... Hoping to see more clearer steps on how exactly it can be done .. Thank you

Hi,...


I already created a Windows To Go USB drive with WinToUSB and running well thanks to your wonderfull program. But when i want to clone to HDD like in THIS tutorial, i unable to proceed with error CLONING WINDOWS ON A VHD IS NOT SUPPORTED. I think the problem come from system partition that different from tutorial.

Sorry for my English

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hi,
recently I'd install windows 10 on HDD and its worked, now i try windows 7 x64 ultimate on same HDD, but when i try to boot it, showing error "windows failed to start a recent hardware or software change might be the cause" and show option to boot in safe mode, safe mode with network, etc, i've try all options and just got same error.
please help me to fix it  

Thanks.