What operating systems are available on the HP 255 G8 Notebook PC?
The HP 255 G8 comes preinstalled with Windows 10 Pro 64-bit, Windows 10 Home 64-bit, Windows 10 Home Single Language 64-bit, or FreeDOS depending on the configuration. HP recommends Windows 10 Pro. HP tested Windows 10, version 1809 on this platform. (Page 4)
From the official HP 255 G8 Notebook PC manual, page 4
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