Toshiba (now Dynabook) never officially released Windows 10 drivers for the C50-A (originally Windows 8). These features typically come from:

: Realtek High Definition Audio Driver (Version 6.0.1.7564) and DTS Sound Utility for enhanced speaker performance.

Open the (or Toshiba Service Station).

: Synaptics TouchPad Driver (Version 19.0.14.31) and Alcor Micro Card Reader Driver.