Hi guys, I need some insight from you guys, Every time I start downloading something my Windows goes crazy, I can not do anything in my computer, every other thing I try to do it does it an a lagging way. I use IDM to manage my downloads, but it does not matter if I am using IDM or not, any type of download will do this to my system. My download speed goes from 4mbps to 10mbps depending from the server I am downloading. What I have: -Windows 8.1 64-bit Version 6.3 (Build 9600) -12 GB Ram (2x4GBDDR3 2x2GBDDR3) -Processor Intel Core i7-2720QM @ 2.20GHz (8 Nucleus) -ST2000LM003 HN-M201RAD 2000GB HD at 5400RPM (I know is slow but it should not do this, right? or am I wrong?) Any opinion on how I can fix this?