Windows to Go - NOT upgradeable --Pity
Windows to Go can't be upgraded unfortunately --you'll have to create it from scratch.
I tried booting a Windows to go 8.1 system and then trying to run the upgrade --unfortunately no go !!!! -
Pity as it would have saved re-installing a load of stuff.
BTW you CAN install Windows to go on "Non certified" devices if you can't create via the control panel.
Here' the instructions -- OK it's W8.1 but the same for W10 - choose the right files for the 64 bit version if you want that though.
Creating a Non-Certified Windows To Go USB Drive » ADMIN Magazine
Here's the block when trying to update a W8.1 Windows to go.
My Windows to Go installed in 30 mins.
No probs INSTALLING a windows to Go -- I was hoping to upgrade an EXISTING installation rather than clean install - to save re-installing apps like Office etc again.
If you don't have many apps installed on Windows to Go then of course no problems doing a new install. Things like PHOTOSHOP and OFFICE for example do take a bit longer though to re-install,