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Description:  

This policy setting limits the maximum age of files in the Background Intelligent Transfer Service (BITS)
Peercache. In order to make the most efficient use of disk space, by default BITS removes any files in the
Peercache that have not been accessed in the past 90 days.

       If you enable this policy setting, you can specify in days the maximum age of files in the cache. You can
enter a value between 1 and 120 days.

       If you disable or do not configure this policy setting, files that have not been accessed for the past 90
days will be removed from the Peercache.

       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 age of files in the BITS Peercache
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 age of files in the BITS
Peercache
.
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
MaxContentAge 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 MaxContentAge and edit the value:

To Enable:
Change the data value with 5a


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 MaxContentAge /t REG_DWORD /d 90 /f

Not Configured\Disabled:
REG DELETE "HKLM\SOFTWARE\Policies\Microsoft\Windows\BITS" /v MaxContentAge /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 = "MaxContentAge"
'Enabled
dwValue = 90
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 MaxContentAge -value 90 -PropertyType DWord -Force
}
else
{
 New-Item -path $RegKey -name BITS
 $RegKey = "HKLM:\SOFTWARE\Policies\Microsoft\Windows\BITS"
 ##Enabled
 New-ItemProperty -path $RegKey -name MaxContentAge -value 90 -PropertyType DWord
}

Not Configured\Disabled

$RegKey = "HKLM:\SOFTWARE\Policies\Microsoft\Windows"
Remove-ItemProperty -Path($RegKey + "\BITS") -name MaxContentAge
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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