System clone was not successful

[jcjsmeets]

I tried to clone my Win8.1 system to a USB disk, but it fails with the error Operation failed.(0x0000000200F70000). WinToUSB is version 2.4 Beta, build sept 18, 2015. USB stick is Sandisk Extreme 32GB.

Any idea how to get this working?

Relevant part of user.log:

2015-09-26 16:24:05 T:000010A8 OS Name:Microsoft Windows 8.1 with Bing Version:6.3.9600 Build 9600 Bits:64
2015-09-26 16:24:05 T:000010A8 WinToUSB Version:2.3.2.2
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