Logitech Speakers Aren't Working After Changing Some Settings !

Computer Type: Laptop
System Manufacturer/Model Number: Sager NP9170
OS: Win 7 Pro x64 / Win 10 Pro
CPU: Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz
Motherboard: CLEVO P170EM
Memory: 12 GB
Graphics Card: (1) Intel(R) HD Graphics 4000 (2) NVIDIA GeForce GTX 675M
Sound Card: (1) Realtek High Definition Audio (2) Intel(R) Display Aud
Monitor(s) Displays: 17.3
Screen Resolution: 1920x1080
Keyboard: Backlite
Hard Drives: (1) Samsung 860 EVO 500GB(OS) (1) Samsung 860 EVO 500GB(Data)
Browser: Firefox
Antivirus: MSE, Malwarebytes Pro
Other Info: DESKTOP: Custom-built. OS: Win 10 Pro x64. CASE: Rosewill R5. CPU: Intel I5 4670K CPU @ 3.40GHz. CPU COOLER: Cool Master Hyper 212 EVO. MOTHERBOARD: Asus Z87-A. MEMORY: Kingston HyperX 2x4 GB. GPU: Nvidia Geforce 650 TI. PSU: Corsair TX750. DRIVES: (1) Samsung 840 120 GB SSD (2) Western Digital blue 500 GB 7200 RPM.