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HomeSystem TutorialWindows Series7 Methods to Find Windows 11 Product Key on Laptop/PC

If you have genuine Windows 11 installed on your PC or laptop, it must be tied to a product key. Most of the time, you may not need to know what your Windows product key is. However, in some cases, such as activation errors or major hardware changes, you will need to reactivate your Windows with the product key. So that's why sometimes you need or have to find your Windows 11 product key.

Fortunately, it's easy to find your Windows 11 product key from your laptop or PC. You can get it in the following seven ways.

7 Methods to Find Windows 11 Product Key on Laptop/PC


  • Method 1: Find Windows 11 product key using CMD
  • Method 2: Find Windows 11 product key using PowerShell
  • Method 3: Find Windows 11 product key in Registry
  • Method 4: Find Windows 11 product key using VBS script
  • Method 5: Find Windows 11 product key using ShowKeyPlus
  • Method 6: Find Windows 11 product key using Product Key Finder
  • Method 7: Find Windows 11 product key in purchase receipt

Method 1: Find Windows 11 Product Key using CMD

Step 1: Click the search icon on your Windows 11 taskbar, and then type cmd in the search box. When the Command Prompt app appears in the search results, click Run as administrator.

7 Methods to Find Windows 11 Product Key on Laptop/PC

Step 2: In the Command Prompt window, type wmic path SoftwareLicensingService get OA3xOriginalProductKey and press Enter. Your 25-character Windows 11 product key will appear immediately below the command line.

7 Methods to Find Windows 11 Product Key on Laptop/PC

You may also be interested in How to Reset Windows 11 Password Using Command Prompt.

Method 2: Find Windows 11 product key using PowerShell

Step 1: Type powershell in your Windows search bar, and when the Windows PowerShell app appears in the search results, click Run as Administrator.

7 Methods to Find Windows 11 Product Key on Laptop/PC

Step 2: In the Windows PowerShell window, type powershell "(Get-WmiObject -query 'select * from SoftwareLicensingService').OA3xOriginalProductKey" and press Enter. Your Windows 11 product key will immediately appear.

7 Methods to Find Windows 11 Product Key on Laptop/PC

Method 3: Find Windows 11 product key in Registry

Step 1: Type registry in your Windows 11 search bar, and when the Registry Editor app appears in the search results, click Open or press Enter.

7 Methods to Find Windows 11 Product Key on Laptop/PC

Step 2: In the Registry Editor, navigate to the folder HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionSoftwareProtectionPlatform.

Step 3: Select the SoftwareProtectionPlatform folder, and then locate the value name BackupProductKeyDefault on the right pane. The value data of BackupProductKeyDefault is your Windows 11 product key. Double-click the BackupProductKeyDefault and you can copy your product key to a safe place for backup.

7 Methods to Find Windows 11 Product Key on Laptop/PC

Method 4: Find Windows 11 product key using VBS Script

Step 1: Right-click on the Windows 11 desktop and select New followed by Text Document to create a new text document (also known as Notepad file).

Step 2: Open the new Notepad file, copy the following code snippet and paste it into the Notepad file.

WshShell = CreateObject("WScript.Shell") を設定します
MsgBox ConvertToKey(WshShell.RegRead("HKLMSOFTWAREMicrosoftWindows NTCurrentVersionDigitalProductId"))
関数 ConvertToKey(キー)
Const KeyOffset = 52
私 = 28
文字 = "BCDFGHJKMPQRTVWXY2346789"
やります
カー = 0
x = 14
やります
カー = カー * 256
Cur = Key(x + KeyOffset) + Cur
Key(x + KeyOffset) = (Cur 24) And 255
Cur = Cur Mod 24
x = x -1
x >= 0 の間ループします
i = i -1
KeyOutput = Mid(Chars, Cur + 1, 1) & KeyOutput
If (((29 - i) Mod 6) = 0) And (i -1) then
i = i -1
キー出力 = "-" & キー出力
終了したら
i >= 0 の間ループします
ConvertToKey = キー出力
関数の終了

ステップ 3: 完了したら、「ファイル」をクリックし、「名前を付けて保存」を選択します。 [名前を付けて保存] ダイアログが開いたら、[ファイルの種類] ドロップダウン メニューから [すべてのファイル] を選択し、ファイルの名前を ProductKey.vbs に変更して、[保存] をクリックします。

7 Methods to Find Windows 11 Product Key on Laptop/PC

ステップ 4: ProductKey.vbs ファイルをダブルクリックしてスクリプトを実行すると、Windows 11 のプロダクト キーが小さなポップアップにすぐに表示されます。次に、Ctrl + C を押してプロダクト キーをコピーし、安全な場所に保存します。

7 Methods to Find Windows 11 Product Key on Laptop/PC

方法 5: ShowKeyPlus を使用して Windows 11 プロダクト キーを見つける

ShowKeyPlus は、製品名、製品 ID、プロダクト キーなどを含む Windows 製品情報を検索して表示する無料のアプリです。

ステップ 1: Windows 11 で Microsoft Store を開き、ShowKeyPlus アプリをダウンロードします。ダウンロードしたら、「開く」をクリックしてアプリを開きます。

7 Methods to Find Windows 11 Product Key on Laptop/PC

ステップ 2: ShowKeyPlus ウィンドウで、インストールされたキーの隣に Windows 11 プロダクト キーが表示されます。

7 Methods to Find Windows 11 Product Key on Laptop/PC

ステップ 3: ShowKeyPlus の左ペインにある [保存] ボタンをクリックすると、Windows 11 プロダクト キーをメモ帳ファイルとして保存できます。

方法 6: プロダクト キー ファインダーを使用して Windows 11 プロダクト キーを検索する

上記のどの方法でも Windows 11 プロダクト キーを取得できない場合は、より強力な iSumsoft プロダクト キー ファインダーを使用してください。 Windows、Microsoft Office、VMware、Adobe、その他のソフトウェア製品の紛失したプロダクト キーを見つけるのに役立ち、ハードディスクがクラッシュした場合でも、あらゆるラップトップや PC で機能します。

ステップ 1: iSumsoft プロダクト キー ファインダーを Windows 11 コンピューターにダウンロードしてインストールします。

ステップ 2: インストールしたら、iSumsoft Product Key Finder を起動し、[回復の開始] ボタンをクリックします。 Windows 11 プロダクト キーを含む、現在コンピューターにインストールされているすべてのソフトウェアのプロダクト キーをすぐに検索し、画面に一覧表示します。

7 Methods to Find Windows 11 Product Key on Laptop/PC

ステップ 3: [ファイルに保存] をクリックすると、すべてのプロダクト キーをメモ帳ファイルに保存できます。

7 Methods to Find Windows 11 Product Key on Laptop/PC

方法 7: 購入レシートから Windows 11 プロダクト キーを見つける

上記の方法がいずれもうまくいかない場合は、購入レシートを調べて Windows 11 のプロダクト キーを見つける必要があります。

コンピュータを購入したときに Windows 11 がプレインストールされている場合、プロダクト キーは通常、パッケージ、証明書、またはコンピュータに付属の物理的なステッカーに記載されています。

Windows 11 を Microsoft オンライン ストアまたはオンライン小売店から購入した場合、プロダクト キーは受け取った確認メールに記載されています。小売業者の Web サイトで Windows 11 の購入に使用した電子メールにログインし、プロダクト キーが含まれている可能性のある電子メールを見つけます。

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