unable to fetch system.int64 registry datavalue in powershell - powershell

Question

Below powershell code is for exporting the complete registry hive to CSV file. But it gives error for exporting REG_Binary type data whose value is big as shown in the attached registry screenshot. Though I tried to convert it to string but no luck. Please suggest on how to fetch the REG_Binary data or how to convert it to string.
Function Get_Reg_Keys ($reg_key) {
$actualKey = Get-Item -Path Registry::$reg_key
#Write-Host $actualKey
ForEach ($name in $actualKey.GetValueNames()) {
# Write-Host $name
$name.Property | foreach {
$type = $actualKey.GetValue($name).GetType()
#Write-Host $type
Write-Host $actualKey.Name " | " $name " | " $actualKey.GetValue($name) " | " $type
If ( $type -eq [System.Byte[]] -Or $type -eq [System.Int64[]]) {
$a = [System.BitConverter]::ToString($actualKey.GetValue($name))
( '"{0:0}","{1:0}", "{2:0}"' -f $actualKey.Name, $name, $a) |
Out-File "C:\Temp\Automation\HKCU.csv" -append -Encoding ascii -erroraction SilentlyContinue
}
Else {
( '"{0:0}","{1:0}", "{2:0}"' -f $actualKey.Name, $name, $actualKey.GetValue($name)) |
Out-File "C:\Temp\Automation\HKCU.csv" -append -Encoding ascii -erroraction SilentlyContinue
}
}
}
$keyinfo = Get-ChildItem Registry::$reg_key
if ($keyinfo.count -gt 0) {
ForEach ($keyitem in $keyinfo) { Get_Reg_Keys ($keyitem) }
}
}
Then running: Get_Reg_Keys ("HKEY_CURRENT_USER\")
Gives the error:
Cannot convert argument "index", with value: "MRUListEx", for "GetValue" to type "System.Int64": "Cannot convert value "MRUListEx" to type "System.Int64". Error: "Input string was
not in a correct format.""
At C:\Temp\Automation\HKCUregistrynew.ps1:27 char:21
+ ( '"{0:0}","{1:0}", "{2:0}"' -f $actualKey.Name, $name, $act ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], MethodException
+ FullyQualifiedErrorId : MethodArgumentConversionInvalidCastArgument
Registry Key details:

Answer 1

To be honest, I'm having a tough time following your function. I'm not even sure how you're iterating over values in a key with that $name.properties | foreach... loop.
But, generally, this is pretty straight forward. For example, I've got a registry key HKCU:\Environment. I've created a property in that key named "thing", and I've stuffed it with some random binary data.
I'll take the guts of that property and output it to a file:
$reg_key = 'HKCU:\Environment'
$key_properties = Get-Item -Path $reg_key
[System.BitConverter]::ToString($key_properties.GetValue('thing')) | Out-File -FilePath .\Test.txt
cat .\Test.txt
Just to show there is nothing up my sleeve:
Good luck.

Answer 2

After making below changes I am able to export a registry hive to CSV file:
$actualKey = Get-Item -LiteralPath Registry::$reg_key
$keyinfo = Get-ChildItem -LiteralPath Registry::$reg_key