We tested on an Acer Aspire One D270 (Intel Atom N2600, 2GB DDR3, 128GB SSD).
If your PC still uses an HDD (mechanical hard drive), Windows 10 often hits 100% disk usage. A ghosted Windows 8.1, however, boots in under 30 seconds on a 5400 RPM drive because it removes Windows Defender, Superfetch (SysMain), and indexing. ghost windows 81 32 bit hot