Does anyone know where I can find the product key for Office 2010? I need to reinstall it on a Dell computer, but I don't have the Office serial number. I have several keys, but I'm concerned that the one I install might have already been used on another computer in our company.

Does the problem occur when the cause is displayed? To be honest, when we install Microsoft Office 2010 on our computer, we don't mention saving the product key in an easily accessible place for reuse. However, how can you find the serial number that has been installed for a long time? Here, you can get 4 quick ways to find the Office 2010 product key. Choose to manually or automatically recover forgotten program keys.

Option 1: Find Office 2010 Product Key Using CMD
Option 2: Locate Office Product Key Through the Registry
Option 3: Find Office 2010 Product Key with Third-Party Key Finder Tools
Option 4: Retrieve MS Product Key with VBScript
Option 5: Check the Serial Number in Email Receipt, Packaging, or Certificate

Option 1: Retrieve Office 2010 Product Key using CMD

After installing it on your computer, you can use the Command Prompt to find your lost product key, but you'll need to know whether you have the 32-bit or 64-bit version of Office first. Check which version of Office you have first.

NOTE: How do I check if my version of Office is 32-bit or 64-bit?

Step 1: Open your Office application. Click the "File" tab and select "Account" from the menu on the left.

Step 2. Under Product Information, you can view the basic details of Microsoft Office 2010. Click on About Excel to see whether Office is 32-bit or 64-bit.

How to Find the Product Key for Microsoft Office 2010

Step 1: Press the Windows + R keys to open the Run dialog box. Type "cmd" and press Enter to open the Command Prompt.

Step 2. When the Command Prompt window opens, type in the following command and press Enter.

For the 32-bit version of Windows:

Office 2010 (32-bit): cscript "C:\Program Files\Microsoft Office\Office14\OSPP.VBS" /dstatus

For the 64-bit version of Windows:

Office 2010 (32-bit): cscript "C:\Program Files (x86)\Microsoft Office\Office14\OSPP.VBS" /dstatus

Office 2010 (64-bit edition): cscript "C:\Program Files\Microsoft Office\Office14\OSPP.VBS" /dstatus

Step 3: You'll see the details of your installed Office. Look for the last 5 characters of the Product Key that's installed.

Step 4: Contact Microsoft to retrieve your full Office key.

Option 2: Find Office Product Key using the Registry

To find your installed product keys, you can look up the Office serial number in the Registry. However, the product key is encrypted and usually cannot be read.

Step 1: Press Windows + R to open the Run box, type regedit, and press Enter.

Step 2: Locate the DigitalProductID key along the path: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\DigitalProductID.

Option 3: Find your Office 2010 product key with a third-party product key finder

There's no need to go through many steps or search through boxes and stickers. We recommend using the Todo PCTrans tool to easily retrieve your Microsoft Office 2010 key. Download the software for free, and you'll see the highlighted “Product Key” feature on the left that lets you export and save Office, Windows, Adobe product keys in two simple steps.

How to Find the Product Key for Microsoft Office 2010:

Step 1: Run Todo PCTrans on your computer and then choose "Product Key" from the left side.

Click on “Scan,” and you'll be able to see the product keys for your Windows, Adobe, and Office products. You can choose to save the keys to a specific location or simply hit “Copy” to use them.

4 Ways to Find Your Microsoft Office Product Key

How to find your Microsoft Office product key? Here are 4 effective methods to find the Microsoft Office product key.

Option 4: Retrieve MS Product Keys via VBScript

Step 1: Search for "Notepad" and open it.

Step 2: Copy and paste the code.

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 Until x <= 0
Cur = Cur * 256
Cur = Key(x + KeyOffset) + Cur
Key(x + KeyOffset) = (Cur \ 24) And 255
Cur = Cur Mod 24
x = x - 1
Loop
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: Click on the "File" tab and then choose "Save As..."

Save the file with the name findproductkey.vbs.

Choose “All Files” as the file type and then click on “Save.”

Step 4. Locate your VBS file and double-click it to open it.

The Product Key window will appear. Check the lost MS Office key and click on OK.

Option 5: Look for the serial number on an email receipt, packaging, or certificate

Though you can try the solutions below instead of using CMD, Registry, tools like Todo PCTrans, VBScript, etc., they will take more time to find the leftover files.

1 - Check your email receipt

If you purchased Microsoft Office online, your product key should be sent to your email. Look for an email with a subject line from Microsoft.

2 - Check the preloaded computer certificate

If you bought it from a computer with Microsoft Office pre-installed, you can check the certificate to retrieve the product key.

3 - Look for your product key on the packaging

If you purchased MS Office in a box, check the packaging if you still have it.

Last Words

In this article, you can find the MS Office product key with 5 methods. According to my suggestion, using Todo PCTrans Tool and CMD are both reliable options with straightforward steps. If you're unsure which one to choose, give them both a try.