Can I switch between Windows 7 and Windows 10 on the HP EliteDesk 800 35W G2 Desktop Mini PC?
You can only use one version of Windows software at a time on this PC. Switching between versions requires you to uninstall one version and install the other, and you must back up all data before doing so to avoid data loss. (Page 5)
From the official HP EliteDesk 800 35W G2 Desktop Mini PC manual, page 5
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