Can you explain "load" and "reloads".
The usual install with format of Windows 7 wipes Windows 10. But you can use your favorite partition manager (free or paid) to delete the partition it's installed in, if installing Windows 7 doesn't do what it should do.
Why do you want to get rid of Windows 10? I installed Classic Shell and my Windows 10 looks like Windows 7.
PS. Going back 2 generations might give some issues, like HP having no Windows 7 drivers for the hardware, or Windows 7 itself not supporting it. Did you research that?
im trying to completely wipe win 10 from my hp laptop then load a new dvd of win7 on it every time i do it win 10 reloads HELP