I have a desktop computer from about 8 years. I am using idm from 5 years. I love idm. Extremely useful software. If you have idm you don’t need any YouTube downloader. This will complete your all downloading. I use it daily with my Vodafone 3G net. I think this is the only fastest downloader in world. I has only one problem that it is free for one month after that it need to activate using serial key. I hack it using a fake serial key. I had rename the idm icon on desktop with the serial key and when I turn on my computer it shows the activation box. I just put any details in first name, last name, email id and copy the serial key from desktop icon and paste in the activation window. Then before pressing’ok’ I open task manager in background and then press ok and immediately end task idm from task manager. This is 100% working trick only needs speed actions and practice.