Powershell ISE无法启动（愚蠢地）删除所有变量

Question

在我急于找出哪些变量是受保护的或常量时，我​​决定只是看看哪些可以被删除 - 假设上面提到的那些将被单独保留。我没有意识到的是，消除这些变量并不局限于本次ISE会议的范围 - 但不仅仅是Powershell全球 - 而是系统全球化。我希望有人能帮助我让ISE再次运作。

我的愚蠢：

Remove-Variable * 

...导致了一堆错误及仅存的少数（10-15），当我执行dir variable:之后。认为这没什么大不了的，重新启动ISE会让我恢复正常，我关闭了它 - 它不会开始。

其他症状

因为我已经发现我已经失去的东西像环境变量%windir%都消失了 - 这在一个最有趣的转折，阻止您打开您的高级系统设置（找不到%windir%\system32\systempropertiesadvanced.exe）来设置你的ENV备份......（是的，我可以直接运行它）

更新：我发现了一个附加效果/症状：视窗报道，我可能不会有之后的正版Windows版本自动更新无法正常工作。我并没有意识到，像某些ENV变种一样简单的事情会杀死那些。人力资源管理。

因此 - 任何人都知道如何恢复或重新创建成功运行ISE所需的环境？

（是的，我已经试过删除并重新添加该功能，重启与合并。）

Answer 1

感谢所有的帮助 - 这就是我所做的，虽然我不确定我是否能够100％地回到我身边，这使我可以使用ISE，Hyper-V管理器并再次验证为真品。

我去到另一台服务器2008 R2中，比较关键和手工编辑注册表，并添加这些值回破机：

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment 
    Path=C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\; 
    PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC 
    PSModulePath=C:\Windows\system32\WindowsPowerShell\v1.0\Modules\ 
    TEMP=C:\Windows\TEMP 
    TMP=C:\Windows\TEMP 
    windir=C:\Windows 

我倾向于在ISE的提升管理员权限作为其影响比会话更多的深层原因。

Answer 2

我的确在ISE删除变量*刚才并没有什么happend。我仍然可以打开ISE并照常工作。我也做了一个-WhatIf看看真正被删除。

PS H:\> Remove-Variable * -WhatIf 
What if: Performing operation "Remove Variable" on Target "Name: null". 
What if: Performing operation "Remove Variable" on Target "Name: false". 
What if: Performing operation "Remove Variable" on Target "Name: true". 
What if: Performing operation "Remove Variable" on Target "Name: MaximumErrorCount". 
What if: Performing operation "Remove Variable" on Target "Name: MaximumVariableCount". 
What if: Performing operation "Remove Variable" on Target "Name: MaximumFunctionCount". 
What if: Performing operation "Remove Variable" on Target "Name: MaximumAliasCount". 
What if: Performing operation "Remove Variable" on Target "Name: MaximumDriveCount". 
What if: Performing operation "Remove Variable" on Target "Name: Error". 
What if: Performing operation "Remove Variable" on Target "Name: PWD". 
What if: Performing operation "Remove Variable" on Target "Name: ?". 
What if: Performing operation "Remove Variable" on Target "Name: MaximumHistoryCount". 
What if: Performing operation "Remove Variable" on Target "Name: Host". 
What if: Performing operation "Remove Variable" on Target "Name: HOME". 
What if: Performing operation "Remove Variable" on Target "Name: ExecutionContext". 
What if: Performing operation "Remove Variable" on Target "Name: PSVersionTable". 
What if: Performing operation "Remove Variable" on Target "Name: PID". 
What if: Performing operation "Remove Variable" on Target "Name: PSCulture". 
What if: Performing operation "Remove Variable" on Target "Name: PSUICulture". 
What if: Performing operation "Remove Variable" on Target "Name: ShellId". 
What if: Performing operation "Remove Variable" on Target "Name: PSHOME". 
What if: Performing operation "Remove Variable" on Target "Name: ConsoleFileName". 
What if: Performing operation "Remove Variable" on Target "Name: $". 
What if: Performing operation "Remove Variable" on Target "Name: ^". 
What if: Performing operation "Remove Variable" on Target "Name: StackTrace". 
What if: Performing operation "Remove Variable" on Target "Name: OutputEncoding". 
What if: Performing operation "Remove Variable" on Target "Name: ConfirmPreference". 
What if: Performing operation "Remove Variable" on Target "Name: DebugPreference". 
What if: Performing operation "Remove Variable" on Target "Name: ErrorActionPreference". 
What if: Performing operation "Remove Variable" on Target "Name: ProgressPreference". 
What if: Performing operation "Remove Variable" on Target "Name: VerbosePreference". 
What if: Performing operation "Remove Variable" on Target "Name: WarningPreference". 
What if: Performing operation "Remove Variable" on Target "Name: ErrorView". 
What if: Performing operation "Remove Variable" on Target "Name: NestedPromptLevel". 
What if: Performing operation "Remove Variable" on Target "Name: ReportErrorShowExceptionClass". 
What if: Performing operation "Remove Variable" on Target "Name: ReportErrorShowInnerException". 
What if: Performing operation "Remove Variable" on Target "Name: ReportErrorShowSource". 
What if: Performing operation "Remove Variable" on Target "Name: ReportErrorShowStackTrace". 
What if: Performing operation "Remove Variable" on Target "Name: WhatIfPreference". 
What if: Performing operation "Remove Variable" on Target "Name: FormatEnumerationLimit". 
What if: Performing operation "Remove Variable" on Target "Name: PSEmailServer". 
What if: Performing operation "Remove Variable" on Target "Name: PSSessionOption". 
What if: Performing operation "Remove Variable" on Target "Name: PSSessionConfigurationName". 
What if: Performing operation "Remove Variable" on Target "Name: PSSessionApplicationName". 
What if: Performing operation "Remove Variable" on Target "Name: psUnsupportedConsoleApplications". 
What if: Performing operation "Remove Variable" on Target "Name: PSBoundParameters". 
What if: Performing operation "Remove Variable" on Target "Name: args". 
What if: Performing operation "Remove Variable" on Target "Name: input". 
What if: Performing operation "Remove Variable" on Target "Name: MyInvocation". 
What if: Performing operation "Remove Variable" on Target "Name: _". 
What if: Performing operation "Remove Variable" on Target "Name: psLocalHelp". 
What if: Performing operation "Remove Variable" on Target "Name: psOnlineHelp". 
What if: Performing operation "Remove Variable" on Target "Name: psISE". 
What if: Performing operation "Remove Variable" on Target "Name: profile". 

注意到真的在那个列表中发生了磨擦。顺便说一句，这些只是ISE运行空间中的变量。我不确定如何消除这些变量会阻止ISE完全发挥作用。