Why Avid Company does not update the driver to the windows 10

[Defnick]

Good afternoon!
I live in Ukraine. Two years ago, I bought a M-Audio Fast Track Usb for writing music at home, for yourself. Salary in the country is small, the average - 4000 hryvnia, is $ 150. I bought it two years ago with the hope that I will enjoy it for a long time. Since I have a license of Windows 8, Microsoft has offered me upgraded to Windows 10, which was my disappointment that the sound card is not working properly, crackle, hiss appears. I need to buy a new card ??? When my salary to buy a new I can not remain on Windows 8 too, as everything moves forward, not backward. Why do companies Avid difficult to update the driver for a new operating system? Or digging does not value their customers who have spent the money to buy their product instead of another company?
The more support ends in 2018!!!!!!!
Please update the driver on Windows 10!!!
P.S. sorry for my English