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Description:  

This setting limits the network bandwidth that BITS uses for peercache transfers (this setting does not
affect transfers from the origin server).
To prevent any negative impact to a computer caused by serving other peers, by default BITS will use up to
30% of the bandwidth of the slowest active network interface. For example, if a computer has both a
100Mbps network card, and a 56 Kbps modem, and both are active, BITS will use a maximum of 30%
of 56Kbps.You can change the default behavior of BITS, and specify a fixed maximum bandwidth that BITS
will use for Peercaching.

If you enable this setting, you can enter a value in bits per second (bps) between 1048576 and 4294967200
to use as the maximum network bandwidth used for peer-caching.

If you disable this setting or do not configure it, the default value of 30% of the slowest active network
interface will be used.

Note: This setting has no effect if the "Allow BITS peercaching" setting is disabled or not configured.

Supported on: At least Windows Vista.
Limit the maximum network bandwidth
used for Peercaching
Description Gpedit Regedit CMD Back VBScript PowerShell Script
Gpedit:   

Please perform the following steps:

Please go to Pearl button (Start) and click on the Search programs and files
For more information about the change from Start to Pearl button click here
Type gpedit.msc and press Enter
In the Group Policy window please navigate to Computer Configuration -> Administrative Templates ->
Network -> Background Intelligent Transfer Service (BITS) and open Limit the maximum network
bandwidth used for Peercaching
.
Not Configured -> is the Default state
Enabled -> apply this GPO
Disabled -> this GPO will not be applied

To finish press ok button and close Group Policy window.
Description Gpedit Regedit CMD Up Back VBScript
Type regedit and press ok
Please confirm User Account Control pop-up
Microsoft official disclaimer

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by
using another method. These problems might require that you reinstall the operating system. Microsoft
cannot guarantee that these problems can be solved. Modify the registry at your own risk.

Note: This registry key is created by Group Policy when this GPO is Enable. The GPO Default state is Not
Configured -> this registry entry is not present. For Disable this registry entry is not present.

Please navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\BITS and locate
MaxBandwidthServed registry key
Regedit:          

Please perform the following steps:

Please go to Pearl button (Start) and click on the Search programs and files
For more information about the change from Start to Pearl button click here
Description Gpedit Regedit CMD Up Back VBScript
Double click on MaxBandwidthServed and edit the value:

To Enable:
Change the data value with 100000


To finish press ok button and close Registry Editor window

Note: Manual editing of this registry key will not be reflected in Group Policy. If you modify this GPO from
Group Policy this registry key will be rewritten.
Description Gpedit Regedit Back CMD VBScript Up
Type cmd, right click on cmd icon under the Programs and click on Run as administrator
Please confirm User Account Control pop-up
Please select, right and copy a registry key from below, then right click on command prompt window
, select Paste and press Enter

Enabled:
REG add "HKLM\SOFTWARE\Policies\Microsoft\Windows\BITS" /v MaxBandwidthServed /t REG_DWORD /d 1048576 /f

Not Configured\Disabled:
REG DELETE "HKLM\SOFTWARE\Policies\Microsoft\Windows\BITS" /v MaxBandwidthServed /f

Note: Manual editing of this registry key will not be reflected in Group Policy. If you modify this GPO from
Group Policy this registry key will be rewritten.
CMD:          

Please perform the following steps:

Please go to Pearl button (Start) and click on the Search programs and files
For more information about the change from Start to Pearl button click here
Description Gpedit Regedit Back CMD VBScript Up
VBScript:          

Const HKEY_LOCAL_MACHINE = &H80000002
strComputer = "."
Set oReg=GetObject("winmgmts:{impersonationLevel=impersonate}!\\" & _
strComputer & "\root\default:StdRegProv")

strKeyPath = "SOFTWARE\Policies\Microsoft\Windows\BITS"
oReg.CreateKey HKEY_LOCAL_MACHINE,strKeyPath
strValueName = "MaxBandwidthServed"
'Enabled
dwValue = 1048576
oReg.SetDWORDValue HKEY_LOCAL_MACHINE,strKeyPath,strValueName,dwValue
'Not Configured
'oReg.DeleteValue HKEY_LOCAL_MACHINE,strKeyPath,strValueName
Description Gpedit Regedit Back CMD VBScript Up
PowerShell Script :          

Enabled

$RegKey = "HKLM:\SOFTWARE\Policies\Microsoft\Windows"
If(Test-Path ($RegKey + "\BITS"))
{
 $RegKey = "HKLM:\SOFTWARE\Policies\Microsoft\Windows\BITS"
 ##Enabled
 New-ItemProperty -path $RegKey -name MaxBandwidthServed -value 1048576 -PropertyType DWord -Force
}
else
{
 New-Item -path $RegKey -name BITS
 $RegKey = "HKLM:\SOFTWARE\Policies\Microsoft\Windows\BITS"
 ##Enabled
 New-ItemProperty -path $RegKey -name MaxBandwidthServed -value 1048576 -PropertyType DWord
}

Not Configured\Disabled

$RegKey = "HKLM:\SOFTWARE\Policies\Microsoft\Windows"
Remove-ItemProperty -Path($RegKey + "\BITS") -name MaxBandwidthServed
If( (Get-Item -Path($RegKey + "\BITS")).ValueCount -eq 0 -and (Get-Item -Path($RegKey + "\BITS")).SubKeyCount -eq 0)
{
  Remove-Item -Path($RegKey + "\BITS")
}
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