No Audio help! motherboard not compatible!

Hi! it's my first time participating here,and I'm happy :)

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                                                                  My Question:

                           I Upgraded from Windows 7 to Windows 10 Build 10130?

                                                 (i'm not sure if its the right build sry)

                                                             On my Windows 7

                          I have a Realtek chipset,and the mobo is a P5GV-mx.and

                I installed the latest Realtek drivers for my Windowsthen it didn't work

              I installed a Soundmax codec and it worked,then I upgraded to windows 10 

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                                                                here's the prob

                      the mobo is not compatible for the audio drivers for windows 10

                           I installed a pair of Realtek Codec,Driver (both R279)     

                                                      and it doesn't work either.

               i wanted to go back to windows 7 but CCleaner deleted the Windows.old Folder

                                               I got really angry.now I can't go back

                                                I hope you Guys can read these

Thanks in advance!