Windows 7 at install no keyboardmouse

I’m trying to install Windows 7 on a Dell XPS 8930 because the company needs to use programs that can only be installed on Windows 7, but when I insert the installation media, whether using a bootable flash drive or CD, the rest of the USBs shut off

So since i had windows installed, i tried to boot from the drive to get some data i want to, which basically cannot be accessed without getting that particular install of windows 7.

When I get to the installation screen the mouse and keyboard doesn't seem to work (I tried multiple mouse's and keyboards (which work fine on other computers)) and no luck.

Enable legacy boot mode in your BIOS. This may allow you to install Windows 7 by bypassing compatibility issues with UEFI mode. Try using a different installation media. If you are using a USB drive, try burning a DVD instead. Alternatively, try a differe

There are six solutions to try to fix the problem. You may not have to try them all. Just work your way down to the top of the list until you find the one that works for you. 1. Unplug the keyboard and the mouse then plug them back 2. Disconnect the power

I finally solved the issue by injecting the windows 7 ISO image with USB 3.0 drivers, so that I can use mouse & keyboard during installation. This is the article that helped me: How to install Windows 7 on a PC with only USB 3.0 ports. I have a tutori