BootCamp Drivers Version for Win8.1 Pro

Hi guys,

I have problem "Downloading the latest Windows support software from Apple" through BootCamp Assistant. Download starts as it is supposed to be, but after I've waited for 16 hours absolutely nothing happened. I've managed to install Windows 8.1 Pro already, so now just need to install BootCamp Drivers on Windows.

I know that there is on option to install BootCamp drivers into Windows manually, I just need to download them. Can you please assist by dropping link to required BootCamp Drivers Version? My specs are following:

OS X El Capitan 10.11.4

iMac (Retina 5k, 27-inch, Late 2015)

Processor: 4GHz Intel Core i7

Memory: 32GB 1600 MHz DDR3

Graphics: AMD Radeon R9 M395x 4096 Mb

Storage: 2 SSD

a) 251 GB Flash Storage - for Mac OS

b) 256 GB Sata SSD - for Windows OS

Many thanks in advance.