Sound problems! Need help quickly, please..

[Nigan]

Hello everyone ,,,
I have the problem that I have no sound in a few games and other games everything is running.

Games that work: Isaac, Fortnite, Rocket League, CS GO, Empire Earth ....
Games not working: Forza Horizon 3, MKX and Heroes of Newerth

Have a MSI GE72VR 6RF Apache Pro Gaming Laptop

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Realtek High Definition Audio Driver Provider

: Microsoft

Driver date: 11.04.2018 (so say it's the latest, have now loaded the newest then go more games)

Driver version: 10.0.17134.1

Have it synonymous with my headset (Sennheiser's G4ME Zero Black)

If you have any information please just ask.

Thanks in advance for the replies.