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USB functionality during ...
Forum: WinToUSB
Last Post: Zppianer
7 hours ago
» Replies: 7
» Views: 480
WintoUSB does not work at...
Forum: WinToUSB
Last Post: Zppianer
9 hours ago
» Replies: 4
» Views: 37
Inaccessible Boot Device ...
Forum: WinToUSB
Last Post: admin
11 hours ago
» Replies: 1
» Views: 19
Sandisk Extreme USB stick...
Forum: WinToUSB
Last Post: hallergard
Yesterday, 03:48 AM
» Replies: 13
» Views: 9,591
Error Message
Forum: Windows To Go Upgrader
Last Post: admin
Yesterday, 12:25 AM
» Replies: 1
» Views: 20
Windows 10 USB3_DRIVER er...
Forum: WinToUSB
Last Post: Tayles
10-24-2016, 10:04 PM
» Replies: 2
» Views: 41
I cannot select the syste...
Forum: WinToUSB
Last Post: admin
10-18-2016, 09:24 PM
» Replies: 1
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Hardware question.
Forum: WinToUSB
Last Post: UserPerson
10-13-2016, 09:18 AM
» Replies: 2
» Views: 63
Unallocated space in WinT...
Forum: WinToUSB
Last Post: admin
10-08-2016, 10:17 PM
» Replies: 6
» Views: 99
Enable hidden boot entry
Forum: EasyUEFI
Last Post: admin
10-06-2016, 07:10 PM
» Replies: 3
» Views: 666

  Inaccessible Boot Device after Windows 10 Updates
Posted by: go4e-moh - Yesterday, 04:37 PM - Forum: WinToUSB - Replies (1)

I have been using Windows 7 to go for a long time from my external USB 3.0 HDD.
Some time ago I formatted and installed Windows 10 - nothing else has changed.
Windows 10 ran well and felt more performant than Windows 7.
After some automatic updates from Windows 10 I now always get the Error: INACCESSIBLE BOOT DEVICE when I try to boot from an USB 3.0 port.
USB 2.0 still works just fine.
I have always been using USB 3.0 and had really nice speed on the system - now with USB 2.0 it's quite slow.

Was anything patched in Windows 10, that makes USB 3.0 not working anymore?
Can this be fixed?

Thank you for your help!

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  WintoUSB does not work at all for me
Posted by: Zppianer - 10-25-2016, 11:00 PM - Forum: WinToUSB - Replies (4)

Hello specialists

Probably someone is here to help me. I'm writing from Germany.
I was very excited when I heard about WintoUSB. A tool which should solve my problem.
But I tried to do this with my HP Elitebook 820 Notebook without success.

My goal is to clone my existing installed Windows 7 Enterprise to a 128 GB USB Stick.
Everything seems to be working, but when the SW comes to cloning, I always get the error message " Specified disk not found " !!!
Diskpart does not recognize my USB Stick.
I searched in the Web and found, that there is a problem with USB 3 ports.
First question Why ??? Is WintoUSB not handling USB 3 correctly and why not ? Windows does. And the stick is recognized before cloning !!!
There was a solution to implement a USB 3 driver in the Windows PE, but when I followed the instruction steps, I always get the message, that I can't have access to the image !!! Even I started cmd as administrator !!! I also don't know what driver.
Why is WintoUSB so complicated ?

There's a second question. After WintoUSB formatted my USB stick I have the choice to chose the boot and the system partition on the USB Stick.
The information which shows up, is, that both partitions have the same capacity. That can't by right, can't it? Another issue?

I downloaded WintoUSB 3.2 and I know, that to clone Windows Enterprise I will need the Full version.
I really would like to buy it, if somebody could explain me how to clone my Windows to the USB Sticks in a way having no issues.
Otherwise it's wasting money.

I would appreciate, if someone could help me. It would be perfect, if I have my Win 7 on a Boot USB Stick

Regards from Germany


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  Windows 10 USB3_DRIVER error
Posted by: Tayles - 10-23-2016, 01:26 AM - Forum: WinToUSB - Replies (2)

I have installed Windows 10 on a Samsung T1 portable ssd using WinToUsb.  When I boot from the usb on certain computers I get a blue screen of death with the code BUGCODE_USB3_DRIVER.  Any ideas why?  On the same computers it boots fine (albeit slowly) on usb 2.  But on other computers it boots correctly on usb 3.0.

I have tried uefi and bios booting, and different versions of Windows 10, but no luck.  All the computers, both working and not, are Dell branded.  Drivers are up to date.  I've even tried making my Windows To Go install using a rival programme (Aomei), but the same error persists on the same machines.

So it seems the problem is hardware-based because it consistently works on some machines and consistently fails on others, but I would really like to know a solution to the problem.  Having a portable OS is not that useful when it only works on certain machines.

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  I cannot select the system partitions.
Posted by: Vinny0 - 10-18-2016, 08:32 AM - Forum: WinToUSB - Replies (1)

I got to the step where you select the usb drive partitions.  I have one in FAT32 and the other in NTFS and, I try to click on them but they do not highlight in red.  Leaving me with the next button still grayed out.

Thanks for the help!


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Question Hardware question.
Posted by: UserPerson - 10-12-2016, 09:50 AM - Forum: WinToUSB - Replies (2)

I created a couple of Win 10 USB external hard drives, and am having a small question: I had to get a replacement motherboard, so, how would I go about reactivating my drives to this new system? I 'd rather not have to delete all the work I've put into them, but don't want to be without activated drives, either.

Thank for your support,

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Sad Unallocated space in WinToUSB.VHD
Posted by: rohanselfhelp - 10-07-2016, 03:13 AM - Forum: WinToUSB - Replies (6)

My WinToUSB.VHD is 66 GB of which my cloned C drive takes 49.05 GB and the rest is shown as unallocated space of 16.95 GB. I got to know this after i mounted this VHD. Now, why is this space there first of all, secondly is this unallocated space being used by any system ? or Is it lying just dead vacant and unused. I would like to reclaim this space if possible. I have cloned my Windows 7 Ultimate. Below is screen shot of my HDDs. Please advise.

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  Failed to run System API (0x0000001502660000)
Posted by: homeshopper - 10-03-2016, 02:31 AM - Forum: WinToUSB - Replies (1)

I have Windows 10 Professional on drive 'C' with 64.1gb free of 110gb HDD.
I am trying to clone to:
SanDisk Extreme usb 3.0 64gb Flash Drive 245mb/s read & 190mb/s write speed.

Disk 1 MBR 58.43gb
* FAT32 100mb system partition
'D' NTFS 58.33gb boot partition
58.00gb Virtual Hard Disk size
VHD/VHDX Insallation Mode
Failed to run System API (0x0000001502660000)
The User.log file contains only data for today, this session usage.
It will not load as an attachment & when saved as txt file is 350kb.
thanks in advance of any help.

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  System API (0x0000001502660000)
Posted by: homeshopper - 09-30-2016, 05:44 AM - Forum: WinToUSB - Replies (2)

I have a minimal(28gb) installation of Windows 10 Professional & want to clone it to 64gb Flash Drive.
Flash drive has MBR with the following partitions:
winToUsb (D) NTFS 60.2g boot partition
* Fat32 100m system partition
Using mode VHDX or VHD, Legacy not available.
Starts to create WinPe then fails with error 'can not run System API (0x0000001502660000)'
I have also disabled the Firewall. Attached is user.log as text file.
I look forward for any help with this problem.

Attached Files
.txt   userlog.txt (Size: 151.8 KB / Downloads: 1)
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  Activate hibernation in windows to go
Posted by: smashwings - 09-21-2016, 01:50 PM - Forum: WinToUSB - Replies (3)

Hello , I have followed the instructions to allow hibernation in the Local Group Policy Editor (gpedit.msc), but its still not available, tried with powercfg.exe /hibernate on after, but keeps saying it can't be activated because of VHD.
How can it be activated?


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  Cannot select system partition
Posted by: sonicserve - 09-15-2016, 10:41 PM - Forum: WinToUSB - Replies (2)

I want to boot both BIOS-based and UEFI-based computers. So on my USB hard drive I created a System FAT partition(350M) and a NTFS boot partition. But it does not allow me to select the system partition. There is no radio button for the system partition. What is the problem?

I am using WinToUSB Free v3.1. I am trying to install Windows 10 Pro 64 bits. My USB hard drive is using MBR partition.

Screenshot is attached.

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