It took over 24 hours, but I managed to get Windows 10 on an ancient Acer Aspire 7720 : r/Windows10
Scheda tecnica del prodotto Acer Aspire 7720G-3A4G25Hn 43,2 cm (17") Intel® Core™2 Duo T5450 4 GB DDR2-SDRAM 250 GB NVIDIA GeForce Go 8600M GT Windows Vista Home Premium Laptops (LX.ANS0X.173)