Get-ChildItem :拒绝访问路径“C：\WINDOWS\system32\LogFiles\WMI\RtBackup”

Question

以管理员身份运行脚本时出现问题。当我以普通用户身份运行时，该脚本仅适用于我的帐户。由于该脚本是以管理员身份运行的，因此它将为所有登录过该计算机的用户执行。该脚本位于C:\Users目录中。

If (-NOT ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator"))

{   
$arguments = "& '" + $myinvocation.mycommand.definition + "'"
Start-Process powershell -Verb runAs -ArgumentList $arguments
Break
}

$path = "Users"
$fileTypes = ".*.vbox"
$files = Get-ChildItem -Recurse | Where-Object FullName -Match ".*$path*" -ErrorAction SilentlyContinue
$counter = 1
$dir = ""

foreach ($file in $files) {
    $name = $file.Name
    $fullname = $file.FullName
    $fullname2 = "qwefd"
    $extension = $file.Extension
    $extXML = "$fullname"+".xml"

    if ($name -Match $fileTypes) {
        if ($dir -ne $file.Directory.Name) {
            $dir = $file.Directory.Name
        }
        Rename-Item $fullname  $extXML



$xmlFileName = $extXML

# Read the existing file
[xml]$xmlDoc = Get-Content $xmlFileName

# If it was one specific element you can just do like so:
$xmlDoc.VirtualBox.Machine.Hardware.Network.Adapter.InnerText  = "<NAT/>"
# however this wont work since there are multiple elements

# Since there are multiple elements that need to be 
# changed use a foreach loop
foreach ($element in $xmlDoc.VirtualBox.Machine.Hardware.Network)
{
    $element.Adapter.InnerText = "<NAT/>"
}



# Then you can save that back to the xml file
$xmlDoc.Save($xmlFileName)

$con = Get-Content $xmlFileName
$con | % { $_.Replace("&lt;", "<") } | Set-Content $xmlFileName

$con2 = Get-Content $xmlFileName
        $con2 | % { $_.Replace("&gt;", ">") } | Set-Content $xmlFileName

        Rename-Item $extXML $fullname
    }
}

pause

我以Admin身份运行此脚本，并获得以下内容：

Get-ChildItem : Access to the path „C:\WINDOWS\system32\LogFiles\WMI\RtBackup” is denied.
At C:\Users\Forcing_NAT_on_VMs.ps1:11 char:10
+ $files = Get-ChildItem -Recurse | Where-Object FullName -Match ".*$pa ...
+          ~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : PermissionDenied: (C:\WINDOWS\syst...es\WMI\RtBackup:String) [Get-ChildItem], Unauthoriz
   edAccessException
    + FullyQualifiedErrorId : DirUnauthorizedAccessError,Microsoft.PowerShell.Commands.GetChildItemCommand

Answer 1

当没有为命令定义文件夹路径时，我遇到了相同的错误

Get-ChildItem  

例如，未定义FullName

$files = Get-ChildItem -Recurse | Where-Object FullName -Match ".*$path*" -ErrorAction SilentlyContinue

Answer 2

我建议在Get-ChildItem中使用-ErrorAction SilentlyContinue