I was getting the insufficent error too.
All that i had to do to resolve it was change the virtual hard disk size to 16GB and the installation started
BTW I am installing Windows 10 64 bit on a Sandisk Extreme 64GB Usb3.0 using an MSI GS70 Stealth running Windows 8.1 64bit.
Will let you know how it goes.
This should really be in a new thread, but I could not start one for some reason. So here goes:
I'm trying to back up a windows 7 boot disk. When Win2Usb does the reboot & tries to create the bootable usb volume I get a failed system api message. Here is the log:
2016-01-07 10:32:36 T:0000041C Unknown operating system
...
2016-01-07 10:33:06 T:0000041C .\CloneMainWnd.cpp 299 nRet=0x0001001501530000
The first line says "Unknow Operating System", but it's windows 7 professional. One hint is that the boot drive on the computer is ssd raid 1.
Thanks,
Russ
(01-08-2016, 05:04 AM)Russ Srole Wrote: [ -> ]This should really be in a new thread, but I could not start one for some reason. So here goes:
I'm trying to back up a windows 7 boot disk. When Win2Usb does the reboot & tries to create the bootable usb volume I get a failed system api message. Here is the log:
2016-01-07 10:32:36 T:0000041C Unknown operating system
...
2016-01-07 10:33:06 T:0000041C .\CloneMainWnd.cpp 299 nRet=0x0001001501530000
The first line says "Unknow Operating System", but it's windows 7 professional. One hint is that the boot drive on the computer is ssd raid 1.
Thanks,
Russ
When pops up the 0x0001001501530000 error, please follow these steps:
Step 1. Open a command prompt ("Tools" > "Windows command prompt")
Step 2. Execute the following command to listing all recognised drive
>diskpart
>list disk
Is the source and target disk list here?
(01-07-2016, 11:49 AM)Stoort Wrote: [ -> ]I was getting the insufficent error too.
All that i had to do to resolve it was change the virtual hard disk size to 16GB and the installation started 
BTW I am installing Windows 10 64 bit on a Sandisk Extreme 64GB Usb3.0 using an MSI GS70 Stealth running Windows 8.1 64bit.
Will let you know how it goes.
This solved my problem! Thanks a lot for taking your time to post about it. Weird bug...
