Hi, I'mCustomer Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.
unfortunately you can't upgrade from Windows Vista to Windows 10. Only Windows 7 and Windows 8 can be upgraded to Windows 10. you need to buy Windows 10 installation disc, once you buy it, please do a backup of your data (you can use an external Hard drive for example) and reinstall windows 10.
Let me know if you need further assistance
Ok great! last question what is the model and brand of your laptop/computer ?
Are you there please?