Install older Sound driver:
Windows 7(32bit,64bit) 6.0.1.6699 Sound(Audio) 2012.10.15
from:
http://www.samsung.com/pl/support/model/NP535U4C-S01PL-downloads?downloadName=BM-P
Sorry, link doesn't work no longer. But if you want the latest realtek drivers without notification you need to search
6.0.1.6699 drivers(probably realtek 273 drivers). Works on Windows 8 on Windows 10 i still have that issue and I'am serachinf now. Good luck