Windows 7 PC becomes very slow on heavy copy - Super User most recent 30 from superuser.com 2010-03-20T22:48:40Z http://superuser.com/feeds/question/74642 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://superuser.com/questions/74642/windows-7-pc-becomes-very-slow-on-heavy-copy 0 Windows 7 PC becomes very slow on heavy copy Donotalo http://superuser.com/users/18119 2009-11-24T07:16:50Z 2009-11-24T07:27:59Z <p>My PC configuration: Intel Core 2 Duo 2.4 MHz, 3 GB RAM, Hitachi 160 GB + Samsung 320 GB HDD, Asus P5B-VM Motherboard. I was using Windows XP Profession on Hitachi HDD for 2 years. Found no problem when copying gigabytes of data in Hitachi hard disk from one place to another. I've recently started using Windows 7 Ultimate in newly bought Samsung HDD (model: HD322HJ). Now my PC becomes almost unusable when heavy copying occured. Any idea why this could happen? Both of my HDD's are SATA 3.0, 3 Gb/s speed. The new Samsung HDD is 7200 RPM which is greater than Hitachi's.</p> <p>Thanks in advance.</p>