Did you know that Windows Vista and Windows 7 reserver 20% of your bandwidth for the system? So, if you did not disable the bandwidth limit, you should probably do so to speed up your internet during Windows updates and other Windows tasks that require bandwidth.
Tip:
A common believe is that Windows takes 20% of your bandwidth and reserves it. Of course, this is not true! Disabling the bandwidth limit will not magically speed up your internet, it will simply not allow Windows-related tasks that require bandwidth (e.g. Windows Updates) to reserve bandwidth when they need it. Let’s say you’re playing a game and you enabled automatic Windows updates, you will then suddenly experience significantly more lag when this setting is enabled.
Disable Bandwidth Limit in Windows 7 Professional / Ultimate
1. Step Enter GPEDIT.msc into the search field on your start menu to open the local policy editor (Important: This feature is not available on Windows 7 Home, see below for more information for Home users)
2. Step Uncollapse Computer Configuration, Administrative Templates, Network, QoS Packet Scheduler
3. Step In the right pane, double-click on Limit reservable bandwidth and select Enabled:
4. Step Enter 0%
5. Step Click on Apply
6. Step The bandwidth limit is now disabled.
Disable Bandwidth Limit in Windows 7 Home Premium
Download the following registry tweak and double-click on it. That’s all you need to do to disable the bandwidth limit in Windows 7 Home: Download Registry Tweak: Disable Bandwidth Limit
Or copy this into a notepad, save as .reg file and execute:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Psched]
"NonBestEffortLimit"=dword:00000000