Not all computers will work with all Windows versions. If you installed an un-supported version you have a very good chance that not everything on the laptop will work, as you found out. If SONY does not have drivers for that model for whatever you installed on it, you need to go back to using the Windows version it came with.
You may also want to do a forum search before starting a new post, there are a few hundred "where are drivers for my Sony laptop" questions here. Pretty much all of them come from people who installed a different Windows on the laptop and now it does not work right.