在筆記型電腦/PC 上尋找 Windows 11 產品金鑰的 7 種方法

如果您的電腦或筆記型電腦上安裝了正版 Windows 11，則它必須與產品金鑰綁定。大多數時候，您可能不需要知道您的 Windows 產品金鑰是什麼。但是，在某些情況下，例如啟動錯誤或重大硬體更改，您將需要使用產品金鑰重新啟動 Windows。這就是為什麼有時您需要或必須找到您的 Windows 11 產品金鑰。

幸運的是，您可以輕鬆地從筆記型電腦或 PC 中找到 Windows 11 產品金鑰。您可以透過以下七種方式取得。

• 方法1：使用CMD找出Windows 11產品金鑰
• 方法2：使用PowerShell找出Windows 11產品金鑰
• 方法3：在登錄中尋找Windows 11產品金鑰
• 方法4：使用VBS腳本找出Windows 11產品金鑰
• 方法5：使用ShowKeyPlus找出Windows 11產品金鑰
• 方法 6：使用產品金鑰查找器尋找 Windows 11 產品金鑰
• 方法7：在購買收據中找出Windows 11產品金鑰

方法1：使用CMD找出Windows 11產品金鑰

步驟 1：按一下 Windows 11 工作列上的搜尋圖標，然後在搜尋框中鍵入 cmd。當命令提示字元應用程式出現在搜尋結果中時，按一下以管理員身份執行。

步驟 2：在命令提示字元視窗中，輸入 wmic path SoftwareLicensingService get OA3xOriginalProductKey 並按 Enter。您的 25 個字元的 Windows 11 產品金鑰將立即出現在命令列下方。

您可能也對如何使用命令提示字元重設 Windows 11 密碼感興趣。

方法2：使用PowerShell找出Windows 11產品金鑰

步驟 1：在 Windows 搜尋列中輸入 powershell，當 Windows PowerShell 應用程式出現在搜尋結果中時，按一下以管理員身分執行。

步驟 2：在 Windows PowerShell 視窗中，輸入 powershell "(Get-WmiObject -query 'select * from SoftwareLicensingService').OA3xOriginalProductKey" 並按 Enter。您的 Windows 11 產品金鑰將立即出現。

方法3：在登錄中尋找Windows 11產品金鑰

第 1 步：在 Windows 11 搜尋列中輸入註冊表，當搜尋結果中出現登錄編輯器應用程式時，按一下「開啟」或按 Enter 鍵。

步驟 2：在登錄編輯器中，導覽至資料夾 HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionSoftwareProtectionPlatform。

步驟3：選擇SoftwareProtectionPlatform資料夾，然後在右側窗格中找到值名稱BackupProductKeyDefault。 BackupProductKeyDefault 的值資料是您的 Windows 11 產品金鑰。雙擊BackupProductKeyDefault，您可以將您的產品金鑰複製到安全的地方進行備份。

方法4：使用VBS腳本找出Windows 11產品金鑰

步驟1：右鍵點擊Windows 11桌面，選擇新建，然後選擇文字文檔，建立一個新的文字文檔（也稱為記事本文件）。

步驟2：開啟新的記事本文件，複製以下程式碼片段並將其貼上到記事本文件中。

Set WshShell = CreateObject("WScript.Shell")
MsgBox ConvertToKey(WshShell.RegRead("HKLMSOFTWAREMicrosoftWindows NTCurrentVersionDigitalProductId"))
Function ConvertToKey(Key)
Const KeyOffset = 52
i = 28
Chars = "BCDFGHJKMPQRTVWXY2346789"
Do
Cur = 0
x = 14
Do
Cur = Cur * 256
Cur = Key(x + KeyOffset) + Cur
Key(x + KeyOffset) = (Cur 24) And 255
Cur = Cur Mod 24
x = x -1
Loop While x >= 0
i = i -1
KeyOutput = Mid(Chars, Cur + 1, 1) & KeyOutput
If (((29 - i) Mod 6) = 0) And (i -1) Then
i = i -1
KeyOutput = "-" & KeyOutput
End If
Loop While i >= 0
ConvertToKey = KeyOutput
End Function

Step 3: Once done, click File and select Save As. When the Save As dialog opens, select All Files from the "Save as type" drop-down menu, rename the file as ProductKey.vbs, and then click Save.

Step 4: Double-click the ProductKey.vbs file to run the script, and your Windows 11 product key will immediately appear in a small popup. You can then press Ctrl + C to copy the product key and save it in a safe place.

Method 5: Find Windows 11 product key using ShowKeyPlus

ShowKeyPlus is a free app to find and show your Windows product information, including your product name, product ID, product key, etc.

Step 1: Open Microsoft Store on your Windows 11, and then download the ShowKeyPlus app. Once downloaded, click Open to open the app.

Step 2: In the ShowKeyPlus window, you can find your Windows 11 product key next to the Installed Key.

Step 3: Click the Save button in the left pane of ShowKeyPlus and you can save your Windows 11 product key as a notepad file.

Method 6: Find Windows 11 product key with Product Key Finder

If none of the above methods retrieve your Windows 11 product key, please turn to the more powerful iSumsoft Product Key Finder. It helps find lost product keys for Windows, Microsoft Office, VMware, Adobe and other software products, and works for any laptops and PCs even if the hard disk is crashed.

Step 1: Download and install the iSumsoft Product Key Finder onto your Windows 11 computer.

Step 2: Once installed, launch iSumsoft Product Key Finder and click the Start Recovery button. It immediately finds the product keys of all software currently installed on your computer, including your Windows 11 product key, and list them on the screen.

Step 3: Click Save To File and you can save all your product keys to a Notepad file.

Method 7: Find Windows 11 product key from purchase receipt

In case none of the above methods work for you, you have to look through your purchase receipt to find your Windows 11 product key.

If Windows 11 is preinstalled on your computer when you bought it, your product key is usually in the packaging, the Certificate of Authenticity, or the physical sticker that came with your computer.

If you purchased your Windows 11 from the Microsoft online store or an online retailer, your product key is in the confirmation email you received. Log in to the email you used to buy Windows 11 on the retailer's website, and then find the email that may contain your product key.

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