Mouse and Keyboard doesn't work while bootup Windows 7

[Alaa5]

Dear all,

Last night i wanted to format Windows 10 and install Windows 7 on HP ProDesk 600 G3 MT while after booting Windows 7 and the screen of selecting the language is showing, the keyboard and mouse are not working.

In spite i changed the keyboard and mouse but still doesn't working. I am stuck and can't select the language and then move to formating process.

Thank you very much for your good support.

[WAWood]

@Alaa5 

Given the date of your post, I would have expected someone to respond to it before this -- but since that has not happened, I will take a shot at it ...

You didn't mention -- are the keyboard and mouse Wired or Wireless? If the latter, that will pose issues as the drivers needed are not installed until after Windows is running.

Also, I see your model comes with Win10 preloaded. If you are trying to FORCE Win7 onto it, that is a bad idea as HP does not make older Win7 drivers for the new hardware with Win10 PCs.