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Question

我正在尝试根据路径数组从寄存器中删除一些键，我会搜索几个关键字并想要删除找到该子项的“树”。

但是在尝试弄清楚之后，下面的脚本总是会返回此错误：

It's not possible to call a method in an expression witha null value.
At line:17 character:1
+ $SubKeys=$RegisterKey.GetSubKeyNames()
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

Begin
{
     $computername = $env:computername
     "Script Started $(Get-Date)"
     [array]$KeysToRemove="HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall","HKEY_LOCAL_MACHINE\\SOFTWARE\\Classes\\Installer\\Products","HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\OnlineManagement","HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Installer\\UserData\\S-1-5-18\\Products","HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Installer\\UserData\\S-1-5-18\\Components","HKEY_CLASSES_ROOT\\Installer\\Products"
}
Process
{
     foreach($keys in $KeysToRemove)
     {
          if($KeysToRemove -eq "HKEY_CLASSES_ROOT\\Installer\\Products")
          {$Register = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey('ClassesRoot', $computername)}
          else {$Register = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey('LocalMachine', $computername)}

          $RegisterKey = $Register.OpenSubKey($keys)

          $SubKeys=$RegisterKey.GetSubKeyNames()

          foreach($key in $SubKeys){
               if($key.Contains('Microsoft\.Intune'))
               {
                    "Key found: $key"
                    "Deleting it from register."
                    $Register.DeleteSubKeyTree($key)
               }
               else {"No key was found."}
          }

     }
"Script Ended $(Get-Date)"
}

Answer 1

需要注意的几件事情：

\\

在PowerShell中，字符串转义字符是反引号`，而不是反斜杠\。不要尝试在注册表项字符串中转义\，这完全没必要。

HKEY_LOCAL_MACHINE

由于您已经打开了基本密钥（HKLM或HKCR），因此您只需指定密钥的 relative 路径 - 这是最有可能失败的原因：

$HKLMRegistry = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey('LocalMachine', $computername)
$UninstallKey = $HKLMRegistry.OpenSubkey("SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall")

# Now you can call GetSubKeyNames()
$SubKeyNames = $UninstallKey.GetSubKeyNames()

如果要迭代给定键上的所有值，请使用GetValueNames()和GetValue()方法：

$UninstallKey.GetValueNames() |ForEach-Object {
    $Value = $UninstallKey.GetValue($_)
    Write-Host 'Value name: {0} had data: {1}' -f $_,$Value
}

尝试搜索和删除注册SubKeyTree时出错

1 个答案:

\\

HKEY_LOCAL_MACHINE