Internet Download Manager (IDM) 6:05 Portable is a tool to increase download speeds by up to 5 times, can continue on a weekly schedule. Comprehensive error recovery and resume capability will restart broken or interrupted downloads distinguished due to lost connections, network problems, computer shutdowns, or unexpected power outages.

If you are interested in using IDM, please download  internet download manager (IDM) 6.05 portable full version from here or here.