Hi there,
I'm trying to downgrade my new HP Envy 15t Quad to Win7, but I keep getting this error: "A required CD/DVD device driver is missing"
I have tried:
1. Installing from a DVD using my external drive
2. Installing from a USB, on all ports (even tried switching it mid installation after the error screen... no luck)
3. Downloading the Intel chipset drivers (these: https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=23060&ProdId=2101&lang=eng&OSVersion=Windows%207%20%20*&DownloadType= ) and opening them when prompted... no luck.
Please help!