Can I Recover Lost Product Key on Windows 11/10/8/7? 5 Methods Here to Help

If you've lost the product key for your Windows operating system, don't worry, as there are 5 methods and detailed steps to help you recover it on your own. On this page, we'll guide you through the process of successfully recovering the lost product key on Windows 11/10/8/7.

How to Recover Lost Product Key on Windows? 5 Methods Are Here to Help

If you've lost or failed to save your Windows product key, you can try to find it on your computer by checking the original packaging, a sticker on the laptop or desktop, or the confirmation email sent by Microsoft. You can also look for it in the Windows Settings app under "Activation" or "Update & Security" on Windows 10. Additionally, you can try running the command "slmgr /dli" in the Command Prompt as an administrator to display the product key.

Don't worry. Here, we'll list 5 reliable methods that you can follow anyone with the respective guide steps to recover lost product key on Windows 11/10/8/7 successfully. Let' see.

5 Methods to Recover Lost Product Key on Windows:

#1. Check the COA Sticker
#2. 1-Click Windows Product Key Finder
#3. Powershell Command
#4. CMD Command
#5. Notepad

The easiest methods, Method 1 and Method 2, are recommended for the simplest solutions, while the more complex Windows built-in methods, Method 3, Method 4, and Method 5, can be tried for more intricate solutions.

To find your missing or lost Windows product key, we'll use the latest Windows 11 as an example. Follow these steps to locate your product key: [insert steps here]. By following these methods, you'll be able to find your Windows product key in no time.

Method 1. Find Product Key of Windows 11/10/8/7 from COA Sticker

The COA sticker, or Certificate of Authenticity Sticker, is a sticker that verifies a computer is shipped with an authentic copy of Windows, and also includes the product key for the current operating system.

If your computer has the original Windows installation, you can check the Windows COA sticker and find the missing product key.

Step 1.Check the back case or the keyboard area of your computer.

Currently, most COA stickers are pasted at the back of the computer.

Step 2.Find the lost product key of your Windows computer.

Usually, it's a serial of numbers printed under the Product Key area on the COA sticker.

Recover lost product key on Windows via COA sticker

If you upgrade your Windows OS, the original product key printed on the COA sticker may not work. You can try alternative methods to find the current key on your computer.

Method 2. Recover Lost Product Key on Windows 11/10/8/7 with Product Key Finder

If you've lost your Windows product key, you can try using a reliable product key finder software like Qiling Key Finder to recover it. This method is easy and can work on Windows 11/10/8/7, as well as older versions.

With this software, you can easily recover the lost product key on a Windows computer by simply clicking on it, allowing you to regain access to your Windows operating system.

Free Download
Windows 11/10/8/7, 100% Secure

Step 1. Click "Windows" tab under the Registry Key.

Step 2. To check the Windows product key on your computer, navigate to the right side of the screen and click on the "Copy" option to paste the product key. Alternatively, you can select other two options which are not mentioned in the provided text.

"Save" - Save to local as a PDF file.

"Print" - Click to print key file.

Method 3. Find Lost Product Key on Windows 11/10/8.1 via Powershell Command

On some newer Windows computers, the product key is not printed on the COA (Certificate of Authenticity) sticker. Instead, the product key is embedded in the PC's hardware, such as the UEFI firmware or BIOS, by the manufacturer.

To find the Windows product key using PowerShell, follow these steps:

Step 1.To access Windows PowerShell, right-click the Windows icon at the start menu and select "Windows PowerShell".

Step 2.Type the command line into Windows PowerShell:

(Get-WmiObject -query 'select * from SoftwareLicensingService').OA3xOriginalProductKey

Recover lost product key on Windows 11 via PowerShell

Step 3.You can do this by typing `Get-PnpDevice -Class System -Status IsPresent` in the PowerShell console. This will display the license key embedded in the Windows OS.

Method 4. Run CMD Command to Find Lost Product Key On Windows

Running a CMD command on a Windows computer is another way to recover a lost product key, particularly useful for finding keys on old Windows 7 computers.

This also works on Windows 11/10/8 new computers. To do this, follow these steps: 1) open the Settings app, 2) go to the System group, 3) click on the Display tab, 4) select the Multiple displays option, 5) click on the "Connect to a PC" button, 6) enter the name of the PC you want to connect to, 7) select the PC from the list, and 8) follow the on-screen instructions to complete the connection. 9) Once connected, you can use the remote desktop feature to access the PC from your Windows 11/10/8 computer.

Step 1.To open Command Prompt with administrator privileges, type "cmd" in the search box, right-click on "Command Prompt" and select "Run as Administrator".

Open CMD

Step 2.Type the command line in the CMD window and hit Enter:

wmic path softwarelicensingservice get OA3xOriginalProductKey

Type in command to recover lost product key

Step 3.Wait for the prompt to find your product key on a computer.

Method 5. Find Lost Product Key on Windows via Notepad

If you're unable to find your Windows product key, you can try running Notepad with certain commands and saving the file as a product key finder. This might be the last effective way to retrieve your product key.

Here are the steps to find the product key of your current OS:

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Set WshShell = CreateObject("WScript.Shell")
MsgBox ConvertToKey(WshShell.RegRead("HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\DigitalProductId"))

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 2.To save a file with a specific extension, go to File > Save As and change the "Save as type" to "All Files" from the dropdown menu. This will allow you to select the desired file type from the file name itself.

Create Productkey file

Step 3.Name the notepad asproductkey.vbs.

Step 4.Save the file to your desktop.

Step 5.To activate your current operating system, double-click the product key file. This will display your current product key.

Recover lost product via notepad file

Recovering Lost Product Key on Windows Is Easy, Go and Find It Now

If you've lost your product key, there are 5 methods that can help you recover it on Windows 11, 10, 8, 7, and even older versions of Windows.

Among the 5 methods, COA sticker and Qiling Key Finder are the two easiest ways to recover a lost Windows serial key.

Free Download
Windows 11/10/8/7, 100% Secure

If you're unable to find the Windows product key, don't worry! There are alternative methods to retrieve it. While they may be a bit more complex, they are still reliable and can be followed carefully to find the missing key.