New
#850
Just tried to upgrade my systems to this Preview version, but they all ended with an error:
0xC1900101 - 0x30018
The installation failed in the FIRST_BOOT phase with an error during SYSPREP operation.
2 laptops (HP and Toshiba)
1 PC (Medion)
Is it because I'm trying to upgrade them from version 1607 (OS Build 14393.953)?