Why is it not possible to install Windows 7 on systems with Raven Ridge, while this is possible with Summit and Pinnacle Ridge ? I don't see any valid reason for just the Raven Ridge Generation being incompatible.
Honestly, I do not want to use Windows 10, because it's a trash OS, many people also think so. You're only hurting the platform by not supporting Windows 7.
dante_2016, as a user I cannot answer your question, but to attempt to help you, please post more information about your system. Windows 7 does not have drivers for USB KB/Mouse and this is where many run into problems, but you have not told us what your actual problem is. I have been around Ryzen from the start and do not know the relationship of the names (eg. Summit...) and processor model, so please be more specific.
I will strongly disagree with your statement that W10 is trash OS. At least it is supported and up to date - it is the future.
If your board has a PS-2 connection(s) for mouse/KB, you might try that. Enjoy, John.
elstaci, please read dante_2016's PS in his other post. He was blocked from Replying to the post. Another user reported this same symptom. There are more than a few bugs in this Forum. Enjoy, John.