Hi IvanSK,
Thank you for your inquiry, I will do my best to help!
I understand that you have updated your system to Windows 7 professional 64 bit and you are looking for a graphic driver.
When I checked the HP Pavilion dv9575ep Notebook PC Drivers page , HP has not tested Windows 7 on your unit. With that being said, they do not supply the drivers. You will need to check the card's manufacture for a driver.
Download or Update Software and Drivers for HP Computers.
When I checked your specifications page, I see you have a NVIDIA® GeForce™ 8600M graphic card. HP Pavilion dv9575ep Notebook Specifications.
Here is a link to one to try NVIDIA Download Drivers, If it does not work, click on the driver tab and choose the automatically find drivers for my NVIDIA products.
I hope this has helped.