Limit the maximum network bandwidth used for Peercaching
Verified with Windows 11 25H2 — updated on July 30, 2026
Supported on: At least Windows Vista
Path in the GPO console
Computer Configuration\Administrative Templates\Network\Background Intelligent Transfer Service (BITS) Description
This policy setting limits the network bandwidth that BITS uses for peer cache 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 percent of the bandwidth of the slowest active network interface. For example, if a computer has both a 100 Mbps network card and a 56 Kbps modem, and both are active, BITS will use a maximum of 30 percent of 56 Kbps. You can change the default behavior of BITS, and specify a fixed maximum bandwidth that BITS will use for peer caching. If you enable this policy 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 policy setting or do not configure it, the default value of 30 percent of the slowest active network interface will be used. Note: This setting has no effect if the "Allow BITS peer caching" policy setting is disabled or not configured.
Registry
Software\Policies\Microsoft\Windows\BITS MDM / Intune (CSP)
./Device/Vendor/MSFT/Policy/Config/ADMX_Bits/BITS_MaxBandwidthServedForPeers Microsoft Learn documentation Mapping data: Microsoft Learn (CC BY 4.0)
Export Builder
BETAConfigure the state, scope and options, then generate .reg, PowerShell, Intune and SCCM outputs — or add the setting to a multi-setting collection.
These exports write the registry — this is not a managed GPO. ⓘ
.reg file
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Limit the maximum network bandwidth used for Peercaching
; State: Enabled
; Supported on: At least Windows Vista
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\BITS]
"MaxBandwidthServed"=dword:00100000More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Limit the maximum network bandwidth used for Peercaching
# State: Enabled
# Supported on: At least Windows Vista
$path = 'HKLM:\Software\Policies\Microsoft\Windows\BITS'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'MaxBandwidthServed' -Value 1048576 -Type DWordIntune XML
OMA-URI: ./Device/Vendor/MSFT/Policy/Config/ADMX_Bits/BITS_MaxBandwidthServedForPeers
Data type: String
Value:
<enabled/>
<data id="BITS_MaxBandwidthServedForPeersList" value="1048576"/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Limit the maximum network bandwidth used for Peercaching
# State: Enabled
# Supported on: At least Windows Vista
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows\BITS' -Name 'MaxBandwidthServed' -Expected 1048576 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Limit the maximum network bandwidth used for Peercaching
# State: Enabled
# Supported on: At least Windows Vista
$path = 'HKLM:\Software\Policies\Microsoft\Windows\BITS'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'MaxBandwidthServed' -Value 1048576 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Limit the maximum network bandwidth used for Peercaching
# State: Enabled
# Supported on: At least Windows Vista
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.
# === Detection script ===
# Exported from gporais.com
# Policy: Limit the maximum network bandwidth used for Peercaching
# State: Enabled
# Supported on: At least Windows Vista
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows\BITS' -Name 'MaxBandwidthServed' -Expected 1048576 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Limit the maximum network bandwidth used for Peercaching
# State: Enabled
# Supported on: At least Windows Vista
$path = 'HKLM:\Software\Policies\Microsoft\Windows\BITS'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'MaxBandwidthServed' -Value 1048576 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.