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Copy Site to Zone Assignment List to new GPO

Posted on 2016-11-02
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Last Modified: 2016-11-05
We are about to change our Windows 7 client invironment to Windows 10. In that process we have to copy our Site to Zone Assignment List from a User Configuration GPO to a Computer Configuration GPO.

How can this be done in the best manner?

I've been looking at some Powershell solutions but I can't make it happen.

Any ideas?

Regards
Kasper K
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Comment
Question by:Kasper Katzmann
  • 5
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9 Comments
 
LVL 6

Expert Comment

by:Niten Kumar
ID: 41869710
Basically you want to copy the user configuration settings from one GPO to the computer configuration settings on another GPO.  Is that correct?
0
 

Author Comment

by:Kasper Katzmann
ID: 41869749
That's correct.
The reason is that Windows 10 handles the Site to Zone Assignment List differently than in ealier versions.
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Author Comment

by:Kasper Katzmann
ID: 41872055
Anyone?
0
 
LVL 83

Expert Comment

by:oBdA
ID: 41873586
Okay, I'll bite.
This will set the target GPO's list to be identical to the source's; any former content of the target's list will be lost.
You can copy from user to computer any way you want, including inside the same GPO.
No safeguards or confirmation prompts.
Tested on Server 2012.
Copy-GPIESiteToZoneAssignment.ps1:
Param(
	[Parameter(Mandatory=$True, Position=0)][ValidateNotNull()]
	[string]$Source,
	[Parameter(Mandatory=$True, Position=1)][ValidateNotNull()]
	[string]$Target,
	[ValidateSet('User', 'Computer')]
	[string]$SourceConfiguration = 'User',
	[ValidateSet('User', 'Computer')]
	[string]$TargetConfiguration = 'Computer'
)
If (-not ($SourceGPO = Get-GPO -Name $Source -ErrorAction SilentlyContinue)) {
	Throw "Source GPO '$($Source)' not found."
}
If (-not ($TargetGPO = Get-GPO -Name $Target -ErrorAction SilentlyContinue)) {
	Throw "Target GPO '$($Target)' not found."
}
If (($SourceGPO.Id -eq $TargetGPO.Id) -and ($SourceConfiguration -eq $TargetConfiguration)) {
	Throw "I'm sorry, Dave. I'm afraid I can't do that."
}
$ZoneName = @{'0' = 'Computer'; '1' = 'Intranet'; '2' = 'Trusted'; '3' = 'Internet'; '4' = 'Restricted'}
$SourceHive = If ($SourceConfiguration -eq 'User') {'HKEY_CURRENT_USER'} Else {'HKEY_LOCAL_MACHINE'}
$TargetHive = If ($TargetConfiguration -eq 'User') {'HKEY_CURRENT_USER'} Else {'HKEY_LOCAL_MACHINE'}
$BaseKey = 'Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings'

Set-GPRegistryValue -Guid $TargetGPO.Id -Additive -Key "$($TargetHive)\$($BaseKey)" -ValueName 'ListBox_Support_ZoneMapKey' -Type DWord -Value 1 | Out-Null
Remove-GPRegistryValue -Guid $TargetGPO.Id -Key $TargetKey -ErrorAction SilentlyContinue | Out-Null

Get-GPRegistryValue -Guid $SourceGPO.Id -Key "$($SourceHive)\$($BaseKey)\ZoneMapKey" | ForEach-Object {
	"* '$($_.ValueName)': $($ZoneName[$_.Value])" | Write-Host
	Set-GPRegistryValue -Guid $TargetGPO.Id -Additive -Key "$($TargetHive)\$($BaseKey)\ZoneMapKey" -ValueName $_.ValueName -Type $_.Type -Value $_.Value | Out-Null
}

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Author Comment

by:Kasper Katzmann
ID: 41873734
Wow - You're the best. Have just tested in our test invironment and it did it.
I got one error though...
Remove-GPRegistryValue : Cannot validate argument on parameter 'Key'. The argument is null or empty. Provide an argument that is not null or empty, and then try the command again.
At line:27 char:49
+ Remove-GPRegistryValue -Guid $TargetGPO.Id -Key $TargetKey -ErrorAction Silently ...
+                                                 ~~~~~~~~~~
    + CategoryInfo          : InvalidData: (:) [Remove-GPRegistryValue], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationError,Microsoft.GroupPolicy.Commands.RemoveGPRegistryValueCommand

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It seems that this line is coursing the error:
Remove-GPRegistryValue -Guid $TargetGPO.Id -Key $TargetKey -ErrorAction SilentlyContinue | Out-Null

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Error message or not, it worked as it should, but can you explain what the line above does?

/Kasper
0
 
LVL 83

Accepted Solution

by:
oBdA earned 500 total points
ID: 41873752
Sorry, that line should clear the old list; here's the corrected version:
Param(
	[Parameter(Mandatory=$True, Position=0)][ValidateNotNull()]
	[string]$Source,
	[Parameter(Mandatory=$True, Position=1)][ValidateNotNull()]
	[string]$Target,
	[ValidateSet('User', 'Computer')]
	[string]$SourceConfiguration = 'User',
	[ValidateSet('User', 'Computer')]
	[string]$TargetConfiguration = 'Computer'
)
If (-not ($SourceGPO = Get-GPO -Name $Source -ErrorAction SilentlyContinue)) {
	Throw "Source GPO '$($Source)' not found."
}
If (-not ($TargetGPO = Get-GPO -Name $Target -ErrorAction SilentlyContinue)) {
	Throw "Target GPO '$($Target)' not found."
}
If (($SourceGPO.Id -eq $TargetGPO.Id) -and ($SourceConfiguration -eq $TargetConfiguration)) {
	Throw "I'm sorry, Dave. I'm afraid I can't do that."
}
$ZoneName = @{'0' = 'Computer'; '1' = 'Intranet'; '2' = 'Trusted'; '3' = 'Internet'; '4' = 'Restricted'}
$SourceHive = If ($SourceConfiguration -eq 'User') {'HKEY_CURRENT_USER'} Else {'HKEY_LOCAL_MACHINE'}
$TargetHive = If ($TargetConfiguration -eq 'User') {'HKEY_CURRENT_USER'} Else {'HKEY_LOCAL_MACHINE'}
$BaseKey = 'Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings'

Set-GPRegistryValue -Guid $TargetGPO.Id -Additive -Key "$($TargetHive)\$($BaseKey)" -ValueName 'ListBox_Support_ZoneMapKey' -Type DWord -Value 1 | Out-Null
Remove-GPRegistryValue -Guid $TargetGPO.Id -Key "$($TargetHive)\$($BaseKey)\ZoneMapKey" -ErrorAction SilentlyContinue | Out-Null

Get-GPRegistryValue -Guid $SourceGPO.Id -Key "$($SourceHive)\$($BaseKey)\ZoneMapKey" | ForEach-Object {
	"* '$($_.ValueName)': $($ZoneName[$_.Value])" | Write-Host
	Set-GPRegistryValue -Guid $TargetGPO.Id -Additive -Key "$($TargetHive)\$($BaseKey)\ZoneMapKey" -ValueName $_.ValueName -Type $_.Type -Value $_.Value | Out-Null
}

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1
 

Author Comment

by:Kasper Katzmann
ID: 41874806
That was what I thought. I will comment that line out then, because for a while we will have both Windows 7 and 10.

Thank you so much for sharing
0
 
LVL 83

Expert Comment

by:oBdA
ID: 41874983
It doesn't clear the "old list" of the source; it clears (if it exists) the old zone map list of the target to make sure that the target has an exact copy of the source.
The source GPO remains unchanged through all of this.
1
 

Author Comment

by:Kasper Katzmann
ID: 41875204
Ok, thank for clearing things out
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