Powershell ISE無法啓動（愚蠢地）刪除所有變量

Question

在我急於找出哪些變量是受保護的或常量時，我​​決定只是看看哪些可以被刪除 - 假設上面提到的那些將被單獨保留。我沒有意識到的是，消除這些變量並不侷限於本次ISE會議的範圍 - 但不僅僅是Powershell全球 - 而是系統全球化。我希望有人能幫助我讓ISE再次運作。

我的愚蠢：

Remove-Variable * 

...導致了一堆錯誤及僅存的少數（10-15），當我執行dir variable:之後。認爲這沒什麼大不了的，重新啓動ISE會讓我恢復正常，我關閉了它 - 它不會開始。

其他症狀

因爲我已經發現我已經失去的東西像環境變量%windir%都消失了 - 這在一個最有趣的轉折，阻止您打開您的高級系統設置（找不到%windir%\system32\systempropertiesadvanced.exe）來設置你的ENV備份......（是的，我可以直接運行它）

更新：我發現了一個附加效果/症狀：視窗報道，我可能不會有之後的正版Windows版本自動更新無法正常工作。我並沒有意識到，像某些ENV變種一樣簡單的事情會殺死那些。人力資源管理。

因此 - 任何人都知道如何恢復或重新創建成功運行ISE所需的環境？

（是的，我已經試過刪除並重新添加該功能，重啓與合併。）

Answer 1

感謝所有的幫助 - 這就是我所做的，雖然我不確定我是否能夠100％地回到我身邊，這使我可以使用ISE，Hyper-V管理器並再次驗證爲真品。

我去到另一臺服務器2008 R2中，比較關鍵和手工編輯註冊表，並添加這些值回破機：

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 

我傾向於在ISE的提升管理員權限作爲其影響比會話更多的深層原因。

Answer 2

我的確在ISE刪除變量*剛纔並沒有什麼happend。我仍然可以打開ISE並照常工作。我也做了一個-WhatIf看看真正被刪除。

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". 

注意到真的在那個列表中發生了磨擦。順便說一句，這些只是ISE運行空間中的變量。我不確定如何消除這些變量會阻止ISE完全發揮作用。