While installing Windows 7 professional on several laptops at work we found that network file copy perfomance was horrible. Because we do all our application installs over the network the slow network performance on the Windows 7 Pc’s was really putting a crimp in our ability to configure the systems quickly. We thought that security settings or software or antivirus software might be the problem but it turned out to be a new feature of Windows 7 causing the slow file server and file copy performance.
Windows 7 by default has a feature called remote differential compression enabled. When remote differential compression is enabled and you are trying to copy files off a Windows file server the files copy but the peformance is poor. Because Windows 7 seems to have issues with Remote Differential Compression, we just turned off the feature on our Windows 7 Pc’s and immediately we found file copy performance improved to what we’d consider normal.
To restore file copy performance on your Windows 7 PC Click Start, Click Control Panel. Go into the Programs And Features icon and choose Turn Windows Features On/Off on the left side of the pane. Then uncheck Remote Differential Compression, click ok and reboot.
[
