January 31, 201016 yr I find that copying to external HDD is very very slow in windows 7.It copies for 10 min then waits for5 min and it goes on like this.Even in pendrives after 4gb copying looks laborious.
February 1, 201016 yr The first thing to verify is that read ahead caching is disabled. By default windows disables cashing on your internal hard drive, but enables it on external hard drives. Just go into device manager, double click on your external HD, and under one of the tabs uncheck the read ahead caching. Reboot, then youll see a big improvement.
February 10, 201016 yr Try using TeraCopy. It makes a huge difference as it uses it's own engine to get the job done, plus it's freeware. I can move 30gigs between 2 sata drives in about 5 minutes with it.http://www.codesector.com/teracopy.php
February 10, 201016 yr I've also seen remote differential compression cause this exact behavior with external drives - it's a feature you can disable from the "Turn Windows features on or off" option under Programs in the Control Panel.
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