PS : it might be wrong section i'm sorry i wasnt sure where to post this.

Hello i'm having a problem with my audio... i have recently bought a new computer and i'm having this problem where my sound goes up or down randomly for no reason.. i have removed what was removed on my other computer(didn't have this problem so i doubt it would be the headset) like do nothing INSTEAD of lower the volume by 50% with skype etc and nothing that i've done works.. I have tried installing/uninstalling my audio drivers without any luck either.. it is very annoying so if anyone could help me that would be great !

My pc specs are :
1 x Intel Core i7 4770K Unlocked Quad Core 3.5GHZ Processor LGA1150 Haswell 8MB Cache Retail
1 x Seagate Barracuda 1TB 7200RPM 64MB SATA 6Gbps 3.5in Internal Hard Drive - OEM
1 x Please Use The Onboard Network Ethernet Card Integrated On My Motherboard
1 x Please Use The Onboard Sound Card Integrated On My Motherboard
1 x Corsair Neutron Series GTX 120GB 2.5in SATA3 6GB/S 7MM LAMD LM87800 Solid State Disk Flash Drive SSD
1 x Corsair Cooling Hydro Series H55 CPU Cooler System LGA1150 1155 1366 1156 2011 AM2 AM3 & FM1
1 x ASUS P8Z77-V Lk ATX LGA1155 Z77 DDR3 3PCI-E16 2PCI-E1 2PCI SATA3 SLI DVI HDMI DP USB3.0 Motherboard
1 x Corsair Vengeance Blue CMZ8GX3M2A1600C9B 8GB 2X4GB DDR3-1600 CL9-9-9-24 Dual Channel Memory Kit
1 x AMD Radeon HD 7950 800MHZ 3GB 5GHZ GDDR5 PCI-E DVI HDMI 2 X Mini Display Port
1 x Thermaltake Overseer RX-I EATX Full Tower Case Black 3X5.25 1X3.5 5X3.5INT Side Window No PS
1 x Corsair Enthusiast Series TX750M 750W ATX Modular Power Supply Active PFC 120MM Fan 5 Year Warranty

I use a Logitech G930 headset(been using it for years never had any ISSUES)

If you need any other information just ask and i will do my best to get them for you. It is really a nightmare and frustrating i have no idea how to fix

Thanks !What operating system?Sorry i should of included that.. Windows 7I have tried uninstalling the logitech program itself and the issue seems to be in surround sound only(I have been using surround sound for years so the normal one sounds a bit wierd to me) i reinstalled it but the issue is still there.

I really HOPE someone knows how to fix this ;(