Try installing the below list of drivers
USB HOST 3.0 : ftp.us.dell.com/.../Chipset_Driver_R15DR_WN_1.0.7.248_A04.EXE
RealTek Card Reader : ftp.us.dell.com/.../Chipset_Driver_1FPF5_WN_6.1.8400.39030_A01.EXE
IntelChip Set : ftp.us.dell.com/.../Chipset_Driver_1FPF5_WN_6.1.8400.39030_A01.EXE
Intel Management Engine : ftp.us.dell.com/.../Chipset_Driver_M7X8M_WN_8.1.0.1248_A01.EXE
Can you tell me if you hv connected any external Blutooth Peripherals