At last I have managed to find a working version of AutoCAD 2017 with help of STFSoft Store. These guys really have a big selection of design software and provide a reliable service. Thanks a lot.
Finally, there is a website that is not full of unnecessary and distracting advertisement. STFSoft really helped me to download Adobe Creative Suite 6 Master Collection and install it without any issues.
My engineering project due date was approaching and all of a sudden, my software has crashed. Thanks to STFSoft, I managed to find a legal version of AutoCAD LT 2017 and downloaded it without any issues.