While in the process of upgrading a Dell Optiplex 3010 with Microsoft Windows Professional 7 to Windows 10 Professional, MediaCreationToolx64.exe would fail with the following message:
“Setup couldn’t start properly. Please reboot your PC and try running Windows 10 Setup again.”
Further inspection in the C:\$Windows.~WS folder\Sources\Panther reveals several log files, named as follows:
After opening “setuperr.log”, the following line of information is available:
MOUPG CSetupHost::Initialize(221): Result = 0x80070057
Our first port of call was to reboot the computer and try the Windows 10 upgrade again. This yielded the same MOUPG CSetupHost::Initialize(221): Result = 0x80070057 message in setuperr.log
Next, we entered msconfig.exe and performed a simple diagnostic to see what services and programs were running at start up.
I noted McAfee SecurityCenter and started to disable all services belonging to McAfee. I left the other services running ( Dell Status Monitor, Adobe Flash Updater etc ) and issued a system reboot.
When the computer loaded back up, I re-ran the MediaCreationToolx64.exe and voila – the Windows 10 upgrade loaded up correctly and installed without a hitch.