Hello and thank you for your question. I look forward to assisting you today. Did you attempt to install Windows 10 over Windows XP?
Did you purchase a license for Windows 10?
Okay. There is no free upgrade from Windows XP to Windows 10. Most likely that is what the problem is and you will need to purchase a license key and reinstall Windows 10. The other thing to consider is your computer. Make sure it meets the minimum hardware specs or better for Windows 10 so you don't have problems in the future.
Well it doesn't really matter what you had running besides Windows XP. The only option you have would be to reload XP and start over with a licensed copy of 10 or Start with Windows 7 and upgrade from there.
It might be cheaper for you to start out with Windows 7 then upgrade from there.
Still with me?