Same problem with an old Toshiba Equium L10. It came with XP pre-installed and has given yeoman service. I added the max RAM (total 2 Gb) and upgraded to Win 7 Home, which has run beautifully. But Windows 10 has refused to install by any of the methods (update, media tool, DVD .ISO). In every case it gets stuck at the Win 10 logo and goes no further. I have successfully upgraded to Win 10 on a range of (5) other PCs and laptops, including a PC with only 2GB RAM. I have tried most or all of the numerous ideas being propounded online - disconnecting peripherals, updating drivers, checking memory, changing language settings, clean boot etc. etc. but without success. Any brainspiration would be most welcome. Thank you.