最近从 Windows 7 企业版更新到 Windows 10 企业版，并运行一个调用 Get-GPPermision 的脚本，但因缺少该命令而出错。编辑：Set-GPPermission 也丢失了。
检查组策略 cmdlet 中的命令表明确实缺少该命令：
PS C:\WINDOWS\system32> get-command -Module grouppolicy
CommandType Name Version Source
----------- ---- ------- ------
Cmdlet Backup-GPO 1.0.0.0 GroupPolicy
Cmdlet Copy-GPO 1.0.0.0 GroupPolicy
Cmdlet Get-GPInheritance 1.0.0.0 GroupPolicy
Cmdlet Get-GPO 1.0.0.0 GroupPolicy
Cmdlet Get-GPOReport 1.0.0.0 GroupPolicy
Cmdlet Get-GPPrefRegistryValue 1.0.0.0 GroupPolicy
Cmdlet Get-GPRegistryValue 1.0.0.0 GroupPolicy
Cmdlet Get-GPResultantSetOfPolicy 1.0.0.0 GroupPolicy
Cmdlet Get-GPStarterGPO 1.0.0.0 GroupPolicy
Cmdlet Import-GPO 1.0.0.0 GroupPolicy
Cmdlet New-GPLink 1.0.0.0 GroupPolicy
Cmdlet New-GPO 1.0.0.0 GroupPolicy
Cmdlet New-GPStarterGPO 1.0.0.0 GroupPolicy
Cmdlet Remove-GPLink 1.0.0.0 GroupPolicy
Cmdlet Remove-GPO 1.0.0.0 GroupPolicy
Cmdlet Remove-GPPrefRegistryValue 1.0.0.0 GroupPolicy
Cmdlet Remove-GPRegistryValue 1.0.0.0 GroupPolicy
Cmdlet Rename-GPO 1.0.0.0 GroupPolicy
Cmdlet Restore-GPO 1.0.0.0 GroupPolicy
Cmdlet Set-GPInheritance 1.0.0.0 GroupPolicy
Cmdlet Set-GPLink 1.0.0.0 GroupPolicy
Cmdlet Set-GPPrefRegistryValue 1.0.0.0 GroupPolicy
Cmdlet Set-GPRegistryValue 1.0.0.0 GroupPolicy
以下是版本表：
PS C:\WINDOWS\system32> $PSVersionTable
Name Value
---- -----
PSVersion 5.1.14393.693
PSEdition Desktop
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 10.0.14393.693
CLRVersion 4.0.30319.42000
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
我能找到的最新命令（上个月发布）显示该命令仍然存在：https://technet.microsoft.com/itpro/powershell/windows/group-policy/index
注意：微软似乎已经破坏了向后兼容性，因为在 powershell 4 的组策略中，调用被命名为 Get-GPPermissions 和 Set-GPPermissions，现在它们删除了“s”，并且都命名为单数 Get-GPPermission 和 Set-GPPermission。
有人知道我如何重新安装该模块吗？
编辑：模块重新安装很容易，只需卸载 RSAT 然后重新安装即可。遗憾的是，命令仍然没有显示，所以我的问题现在应该是如何恢复丢失的命令。
答案1
在花了太多时间尝试调试这个问题后，我放弃了，并从头开始重新镜像系统，解决了这个问题。这不是答案，但它使问题变得毫无意义。
答案2
我假设你正在使用 Win10 客户端（带有 RSAT？）来写下你的脚本。我建议导入组策略来自 DC PSSession 的模块：
$DC = 'yourDomainController'
$Credentials = Get-Credentials
$DCSession = New-PSSession -ComputerName $DC -Credential $Credentials
Import-Module grouppolicy -PSSession $DCSession
##############
Get-Command -Module grouppolicy
CommandType Name Version
Source
----------- ---- ------- --
Function Backup-GPO 1.0 grouppolicy
Function Copy-GPO 1.0 grouppolicy
Function Get-GPInheritance 1.0 grouppolicy
Function Get-GPO 1.0 grouppolicy
Function Get-GPOReport 1.0 grouppolicy
Function Get-GPPermissions 1.0 grouppolicy
Function Get-GPPrefRegistryValue 1.0 grouppolicy
Function Get-GPRegistryValue 1.0 grouppolicy
Function Get-GPResultantSetOfPolicy 1.0 grouppolicy
Function Get-GPStarterGPO 1.0 grouppolicy
Function Import-GPO 1.0 grouppolicy
Function New-GPLink 1.0 grouppolicy
Function New-GPO 1.0 grouppolicy
Function New-GPStarterGPO 1.0 grouppolicy
Function Remove-GPLink 1.0 grouppolicy
Function Remove-GPO 1.0 grouppolicy
Function Remove-GPPrefRegistryValue 1.0 grouppolicy
Function Remove-GPRegistryValue 1.0 grouppolicy
Function Rename-GPO 1.0 grouppolicy
Function Restore-GPO 1.0 grouppolicy
Function Set-GPInheritance 1.0 grouppolicy
Function Set-GPLink 1.0 grouppolicy
Function Set-GPPermissions 1.0 grouppolicy
Function Set-GPPrefRegistryValue 1.0 grouppolicy
Function Set-GPRegistryValue 1.0 grouppolicy