Old trick but it work very well!
Microsoft reserves 20% of your available bandwidth for their own purposes like Windows Updates and interrogating your PC etc. By using reserved bandwidth, you can make your internet connection faster by 20%. Below steps will guide you to increase speed of your Internet.***
Limit Reservable Bandwidth Setting in Windows XP,Windows 7, Windows 8
1. Press Windows Key + R combination, type put gpedit.msc in Run dialog box and hit Enter to open the Local Group Policy Editor.
2. Navigate here:
Computer Configuration -> Administrative -> Network -> Qos Packet Scheduler
3. In the right pane of this window, look for the settings named Limit reservable bandwidth, it must be showing a Not Configured status by default. Double click on the same setting to modify it:This policy setting determines the percentage of connection bandwidth that the system can reserve. This value limits the combined bandwidth reservations of all programs running on the system. By default, the Packet Scheduler limits the system to 80 percent of the bandwidth of a connection, but you can use this setting to override the default. If you enable this setting, you can use the “Bandwidth limit” box to adjust the amount of bandwidth the system can reserve. If you disable this setting or do not configure it, the system uses the default value of 80 percent of the connection. If a bandwidth limit is set for a particular network adapter in the registry, this setting is ignored when configuring that network adapter.
4. Now, in the above shown window, select Enabled and in the Options section; you could input the percentage for limiting the bandwidth. If you input 0 percent here, you can gain the reserved bandwidth reserved by the system.
Click Apply followed by OK then. You may now close the Local Group Policy Editor and reboot the system with gained bandwidth.
For these who don't have gpedit in there systems:
Thanks to "jwils876" @ DA has shared a small setup file to enable Group Policy Editor in Windows 7 Starter, Home Basic and Home Premium editions.
The installer has been originally created by "davehc" @ Windows7forums, so thanks goes to him as well.
For Windows 7 64-bit (x64) users! You'll also need to go to "SysWOW64" folder present in "C:\Windows" folder and copy "GroupPolicy", "GroupPolicyUsers" folders and gpedit.msc file from there and paste them in "C:\Windows\System32" folder.
If you are getting "MMC could not create the snap-in" error message while running gpedit.msc, check out following steps to fix the problem. Basically it happens when your username in Windows contains more than one word.
Run the installer and leave it at the last step (do not click on the "Finish" button).
Now go to C:\Windows\Temp\gpedit\ folder.
If you are running 32-bit (x86) edition of Windows 7, right-click on x86.bat file and choose Open With Notepad option. If you are running 64-bit (x64) edition of Windows 7, right-click on x64.bat file and choose "Open With -> Notepad" option.
You'll find a total of 6 lines containing the following string in the file:
%username%:f
Edit those lines and replace %username% with "%username%"
For example:
Original: %WinDir%\SysWOW64\gpedit.dll /grant:r %username%
New: %WinDir%\SysWOW64\gpedit.dll /grant:r "%username%"
Save and run the file (right-click -> Run as Administrator.
That's it. You'll have working gpedit.msc.
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