WARNING: MESSING WITH YOUR REGISTRY CAN F*CK YOU UP!

This is a nice little tweak to get 20% of bandwidth back.Microsoft reserve 20% of your available bandwidth for their own purposes (suspect for updates and interrogating your machine etc..).

• Click Start–>Run–>type “gpedit.msc” without the ”
• This opens the group policy editor. Then go to Local Computer Policy–>Computer Configuration–>Administrative Templates–>
  Network–>QOS Packet Scheduler–>Limit Reservable Bandwidth
• Double click on Limit Reservable bandwidth. It will
  say it is not configured, but the truth is under the
  ‘Explain’ tab : “By default, the Packet Scheduler limits the system to
  20 percent of the bandwidth of a connection, but you
  can use this setting to override the default.”
• So the trick is to ENABLE reservable bandwidth, then
  set it to ZERO. This will allow the system to reserve nothing, rather
  than the default 20%.
• works on XP Pro, 2000 and 2003 but not sure about
  other o/s’s.

Here are the screen shots -

__________________