Windows 10 Pro Version 1703 Build 15063 (we are using O365 Win10 Enterprise E3 seats, so the OS is Pro until the user logs in for the first time)
I have followed this how-to step-by-step, without skipping a beat; checked my work 20 times before testing it.
I'm doing this to the same test hardware as well, Dell E5550 laptop
I do not get an error at all and my task sequence completes successfully... but it does not work. I login with my test (non-admin) account, and it's the default start menu layout.