Question

如果用户名/密码不正确，如何重新提示凭证框？

Import-Module ActiveDirectory
Write-Host "Please enter Admin credential..."
$Creds = Get-Credential

我的脚本甚至在输入错误的用户名/ pw（w错误地显示错误）后运行每行

每次用户/传递无效时我都需要Get-Credential出现，因此每次输入错误信息时我都不会重新运行相同的脚本。

更新：

下面是示例脚本：

Import-Module ActiveDirectory
Write-Host "Please enter Admin credential..."
$Creds = Get-Credential
$Tpm = Get-wmiobject -ComputerName $wsid -Credential $Creds -Namespace ROOT\CIMV2\Security\MicrosoftTpm -Class Win32_Tpm

我需要获取另一台计算机的TPM，并且需要输入user / pw才能完成这项工作。我需要的是验证用户/名称pw是否正确，如果没有，请重新启动Get-Credentials屏幕。

Answer 1

您无法使用get-credential验证凭据，而是可以对get-wmiobject使用try catch语句，例如

$c=get-credential
try{
    gwmi -ComputerName comp1 -Credential $c -Class win32_bios
}
catch [System.UnauthorizedAccessException]{
    "wrong credential retry please"
    $c=get-credential
}

Answer 2

function Test-Credentials() {
param (
        [Parameter(Mandatory = $false)]
        [PsCredential]$Creds
)

$IDX = 0   # Retry Limit Counter
$limit = 3 # Retry Limiter

$DS = New-Object System.DirectoryServices.AccountManagement.PrincipalContext('domain')
while (!$DS.ValidateCredentials($Creds.UserName, $Creds.GetNetworkCredential().password) -and ($IDX -lt $limit)) {
    
    $IDX++
    
    Write-Host " - Failed - " -ForegroundColor Yellow
    $Creds = Get-Credential -Message "Validaton Failed: Please Re-enter your credentials" -UserName $Creds.UserName
}
return $Creds

如果用户名/密码不正确，请重新提示凭据框

2 个答案: