Fix Outlook 2007 & POP3 Performance Issues in Windows Vista!

Windows Vista has always been associated with some kind of usage issues with MS Outlook 2007 and POP3 accounts. Several Outlook 2007 users have complained that Outlook 2007 becomes virtually unusable with POP3 accounts in Windows Vista. But this issue is limited to usage of Outlook 2007 only as Outlook 2003 works really fine in it. When people attempts to download emails from POP3 accounts on Outlook 2007 in Windows Vista they have reported extremely slow speed, so slow that it looks like Outlook 2007 crawls with the speed of 1MB of emails per hour. With such performance it is really very hard to work with Outlook 2007 and POP3 accounts in Windows Vista.

Some of the experts closely associate this issue with the new feature of Windows Vista which is named as ‘TCP Windows Scaling’. It is because when any network hardware device or a router does not deliver any support to the Vista’s new feature which is termed as TCP Windows Scaling then user gonna experience the slow download speeds as it has been discussed above. In order to resolve this issue one easy way is to navigate to the Command prompt with elevated privileges and type the command ‘netsh interface tcp set global autotuninglevel=disabled’ and press ‘Enter’. This command will set the value for the autoTuningLevel parameter disabled and help to enhance the performance of Outlook 2007 in Windows Vista.

So, from the next time when you start Outlook 2007 in Windows Vista slow download speed from POP3 server will no longer be an issue. Alternatively you can check for the hardware that does not support ‘TCP Windows Scaling’ feature of Vista and fix the problem.