How to Change or Reset Product Key of Microsoft Office XP, 2003, 2007 and 2010?

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Many times you might want to change the product key of Office suite installed in your system. It might be because your product key expired and you got a new one or it might be because you installed Office using pirated key and now you want to change the product key with a genuine one.

To change the product key you'll have to uninstall the Office suite from your system and then reinstall it.

But here is a small and simple tutorial which will help you in changing the product key without uninstalling the Office.

Change Office XP Product Key:

1. Type regedit in RUN dialog box and press Enter. Now goto:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\10.0\Registration

2. Under "Registration" key, you'll see one or more GUID (Globally Unique IDentifiers) containing a combination of alphanumeric characters in following format:

{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}

3. Select each key and look at "ProductName" key in right-side pane. One GUID key will contain the version number of Office installed in your system "Microsoft Office XP Professional Edition".

4. Select that GUID key and delete following 2 registry entries from right-side pane:

DigitalProductID
ProductID

5. Close registry editor and run any Office application e.g. word, excel, etc. It should prompt you to enter a new product key.

6. Enter the desired product key and click on OK. That's it.

Change Office 2003 Product Key:

1. Type regedit in RUN dialog box and press Enter. Now goto:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\11.0\Registration

2. Under "Registration" key, you'll see one or more GUID (Globally Unique IDentifiers) containing a combination of alphanumeric characters in following format:

{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}

3. Select each key and look at "ProductName" key in right-side pane. One GUID key will contain the version number of Office installed in your system e.g. "Microsoft Office Professional Edition 2003".

4. Select that GUID key and delete following 2 registry entries from right-side pane:

DigitalProductID
ProductID

5. Close registry editor and run any Office application e.g. word, excel, etc. It should prompt you to enter a new product key.

6. Enter the desired product key and click on OK. That's it.

Change Office 2007 Product Key:

1. Type regedit in RUN dialog box and press Enter. Now goto:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\12.0\Registration

2. Under "Registration" key, you'll see one or more GUID (Globally Unique IDentifiers) containing a combination of alphanumeric characters in following format:

{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}

3. Select each key and look at "ProductName" key in right-side pane. One GUID key will contain the version number of Office installed in your system "Microsoft Office Professional Edition 2007".

4. Select that GUID key and delete following 2 registry entries from right-side pane:

DigitalProductID
ProductID

5. Close registry editor and run any Office application e.g. word, excel, etc. It should prompt you to enter a new product key.

6. Enter the desired product key and click on OK. That's it.

Change Office 2010 Product Key:

1. Type regedit in RUN dialog box and press Enter. Now goto:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\14.0\Registration

2. Under "Registration" key, you'll see one or more GUID (Globally Unique IDentifiers) containing a combination of alphanumeric characters in following format:

{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}

3. Select each key and look at "ProductName" key in right-side pane. One GUID key will contain the version number of Office installed in your system "Microsoft Office Professional Edition 2010".

Remove_Office_Product_Key.png

4. Select that GUID key and delete following 2 registry entries from right-side pane:

DigitalProductID
ProductID

5. Close registry editor and run any Office application e.g. word, excel, etc. It should prompt you to enter a new product key.

6. Enter the desired product key and click on OK. That's it.

IMPORTANT NOTES:

A. Take a backup of "Registration" key before deleting the registry entries from right-side pane, so that in case the new product key doesnt work you can restore the previous key without any problem. To take backup right-click on "Registration" key and select "Export".

B. If you are a x64 bit Windows user, then the key location will be different in registry. Please check following paths:

Office XP:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\10.0

Office 2003:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\11.0

Office 2007:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\12.0

Office 2010:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\14.0

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