Manually uninstall Office

Step 1 - Determine your installation type

Before you begin the manual steps, determine your Office installation type so you can choose the correct way to uninstall it:

• Click-to-Run is a new way to install and update Office over the Internet and it works similarly to streaming video. By default, the latest version of Office which is included in Microsoft 365, and most one-time purchases of Office 2016 or Office 2013 products (such as Office Home & Student 2016 or Office Home & Business are installed by using Click-to-Run.

• MSI, (also known as the Microsoft Windows Installer), is the traditional way of installing Office via a local installation resource.

  To determine your installation type do the following

  1. Create or open an existing file and select File > Account (or it might say Office Account).

  2. Under Product information, find the About button and check for the following:

     Click-to-Run

     

     Click-to-Run installations have an Update Office button, and include the phrase Click-to-Run.

     MSI

     

     An MSI installation doesn't have an Update Office button, and doesn't list a Version or Build number beside About Office.

Step 2 - Select the installation type you want to uninstall

Remove Office 2010 manually

Note: You’ll need to be logged in with an administrator account for this method. If your computer is part of a network, you might have to ask the system administrator for help. If you’re not sure if you’re logged on with an administrator account, refer to How to determine your user account type in Windows for help.

This article contains information about how to modify the registry. Make sure that you back up the registry before you modify it. It’s important to know how to back up the registry and restore the registry in the case that a problem occurs.

First, during this method you’ll need to view Hidden files and folders, here’s how:

1. Open Windows Explorer.

2. On the Tools menu, click Folder Options. (Press the ALT key to display the menu bar.)

3. Click the View tab.

4. In the Advanced settings pane, under Hidden files and folders, click Show hidden files and folders.

5. Clear Hide extensions for known file types and click OK, and then close the windows.

Ok, now that you know how to view hidden files and folders you can start manually removing Office.

Step 1: Remove any remaining Windows Installer packages of the Microsoft Office 2010 system

1. Click Start>All Programs, and then open the Accessories folder.

2. Click Run, and then click in the Open box.

3. Type Installer, then click OK.
   This opens the %windir%\Installer folder.

4. On the View menu, click Choose Details (Press the ALT key to display the menu bar.)

5. Click to select the Subject check box, type 340 in the Width of selected column (in pixels) box, and then click OK.

6. Note It may take several minutes for the subjects to appear next to each MSI file.

7. On the View menu, point to Sort by and then click Subject.

8. If a User Account Control dialog box appears, click Allow to continue.

9. Locate each .MSI file where the subject is "Microsoft Office <product name> 2010," right-click the MSI file, and then click Uninstall.

Note: <Product name> is a placeholder for the name of the Microsoft Office 2010 product.

Step 2: Stop the Office Source Engine service

1. Click Start>All Programs, and then open the Accessories folder.

2. Click Run, and then click in the Open box.

3. Type services.msc, and then click OK.

4. In the Services window, scroll down the list until you see Office Source Engine and check to see if the service is running ("Started" will appear in the Status column). If this service is running, right-click Office Source Engine, and then click Stop.

5. Close the Services window.

Step 3: Remove any remaining Microsoft Office 2010 installation folders

1. Click Start> All Programs, and then open the Accessories folder.

2. Click Run, and then click in the Open box.

3. Type %CommonProgramFiles%\Microsoft Shared, and then click OK.

Note: On a computer that is running a 64-bit version of Windows 7, type %CommonProgramFiles(x86)%\Microsoft Shared, and then click OK.

1. If the following folders are present, delete them:

   • Office14

   • Source Engine

2. Click Start> All Programs, and then open the Accessories folder.

3. Click Run, and then click in the Open box.

4. Type %ProgramFiles%\Microsoft Office, and then click OK.

Note: On a computer that is running a 64-bit version of Windows 7, type %ProgramFiles(x86)%\Microsoft Office, and then click OK.

1. Delete the Office14 folder.

2. On the root folder of each hard disk drive, locate and then open the MSOCache folder. If you cannot see this folder, you’ll need to view hidden files and folders.

3. Open the All Users folder in the MSOCache folder, and then delete every folder that contains 0FF1CE}-text in the folder name.

Step 4: Remove any remaining Microsoft Office 2010 installation files

1. Click Start>All Programs, and then open the Accessories folder.

2. Click Run, and then click in the Open box.

3. Type %appdata%\microsoft\templates, and then click OK.

4. Delete the following files:

   • Normal.dotm

   • Normalemail.dotm

5. Click Start>All Programs, and then open the Accessories folder.

6. Click Run, and then click in the Open box.

7. Type %appdata%\microsoft\document building blocks, and then click OK.

8. Open the subfolder found in the Document Building Blocks folder.

Note: The subfolder title will be a four-digit number that represent the language of the Microsoft Office suite.

1. Delete the building blocks.dotx file.

2. Close all programs before you follow the rest of the steps.

3. Click Start>All Programs, and then open the Accessories folder.

4. Type %temp%, and then click OK.

5. On the Edit menu, click Select All.

6. On the File menu, click Delete.

7. Click Start>All Programs, and then open the Accessories folder

8. Click Run, and then click in the Open box.

9. Type %AllUsersprofile%\Application Data\Microsoft\Office\Data, and then click OK.

10. Delete the opa14.dat file (and ONLY this file). This file does not show up

Step 5: Remove the registry sub-keys of the Microsoft Office 2010 system

Locate and then delete the Office 2010 registry sub-keys if they are present. To do this, follow these steps:

For a 32-bit version of Office 2010

1. Click Start>All Programs, and then open the Accessories folder.

2. Click Run, and then click in the Open box.

3. Type regedit, and then click OK.

4. Click the following registry sub-key:
   HKEY_CURRENT_USER\Software\Microsoft\Office\14.0

5. On the File menu, click Export, type DeletedKey01, and then click Save.

6. On the Edit menu, click Delete, and then click Yes to confirm.

7. Repeat these steps (1 through 7) for each registry sub-key in the following list. Change the name of the exported key by one for each sub-key.

Example - Type DeletedKey02 for the second key, type DeletedKey03 for the third key, and so on.

In the following registry keys, the asterisk character (*) represents one or more characters in the sub-key name.

• HKEY_CURRENT_USER\Software\Microsoft\Office\14.0

• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\14.0

• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Delivery\SourceEngine\Downloads\*0FF1CE}-*

• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*0FF1CE*

• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\Upgrade Codes\*F01FEC

• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\*F01FEC

• HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ose

• HKEY_CLASSES_ROOT\Installer\Features\*F01FEC

• HKEY_CLASSES_ROOT\Installer\Products\*F01FEC

• HKEY_CLASSES_ROOT\Installer\UpgradeCodes\*F01FEC

• HKEY_CLASSES_ROOT\Installer\Win32Assemblies\*Office14*

• Locate the following registry sub-key:

  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall

• On the File menu, click Export, type UninstallKey01, and then click Save.

• Under the Uninstall sub-key that you located in step 1, click each sub-key, and then determine whether the sub-key has the following value assigned to it:

  • Name: UninstallString

  • Data: file_name path\Office Setup Controller\Setup.exe path

Note: In this example, file_name is a placeholder for the anme of an installation program, and path is a placeholder for the file path.

1. If the sub-key contains the name and the data that are described in step 3, click Delete on the Edit menu. Otherwise, go to step 5.

2. Repeat steps 3 and 4 until you locate and then delete every sub-key that matches the name and the data that are described in step 3.

3. Close Registry Editor.

For a 64-bit version of Office 2010

1. Click Start>All Programs, and then open the Accessories folder.

2. Click Run, and then click in the Open box.

3. Type regedit, and then click OK.

4. Click the following registry sub key:
   HKEY_CURRENT_USER\Software\Microsoft\Office\14.0

5. On the File menu, click Export, type DeletedKey01, and then click Save.

6. On the Edit menu, click Delete, and then click Yes to confirm.

7. Repeat these steps (1 through 7) for each registry sub-key in the following list. Change the name of the exported key by one for each sub-key.

Example - Type DeletedKey02 for the second key, type DeletedKey03 for the third key, and so on.

Note: In the following registry keys, the asterisk character (*) represents one or more characters in the sub-key name.

• HKEY_CURRENT_USER\Software\Microsoft\Office\14.0

• HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\14.0

• HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\Delivery\SourceEngine\Downloads\*0FF1CE}-*

• HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*0FF1CE*

• HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Installer\UpgradeCodes\*F01FEC

• HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\*F01FEC

• HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ose

• HKEY_CLASSES_ROOT\Installer\Features\*F01FEC

• HKEY_CLASSES_ROOT\Installer\Products\*F01FEC

• HKEY_CLASSES_ROOT\Installer\UpgradeCodes\*F01FEC

• HKEY_CLASSES_ROOT\Installer\Win32Asemblies\*Office14*

• Locate the following registry sub-key:

  • HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall

• On the File menu, click Export, type UninstallKey01, and then click Save.

• Under the Uninstall sub-key that you located in step 1, click each sub-key, and then determine whether the sub-key has the following value assigned to it:

  • Name: UninstallString

  • Data: file_name path\Office Setup Controller\Setup.exe path

Note: In this example, file_name is a placeholder for the name of an installation program, and path is a placeholder for the file path.

1. If the sub-key contains the name and the data that are described in step 3, click Delete on the Edit menu. Otherwise, go to step 5.

2. Repeat steps 3 and 4 until you locate and then delete every sub-key that matches the name and the data that are described in step 3.

3. Close Registry Editor

Step 6: Restart the computer

Restart the computer and reinstall Microsoft Office.

Step 1: Remove any remaining Windows Installer packages of the 2007 Microsoft Office system

1. Open the %windir%\Installer folder. To do this, click Start, click Run, type %windir%\Installer, and then click OK.

2. On the View menu, click Choose Details.

3. Click to select the Subject check box, type 340 in the Width of selected column (in pixels) box, and then click OK.

   Note: It may take several minutes for the subjects to appear next to each .MSI file.

4. On the View menu, point to Sort by in Windows 7 or Vista, or point to Arrange icons by in Windows XP, and then click Subject.

5. If a User Account Control dialog box appears, click Allow to continue.

6. Locate each .MSI file where the subject is "Microsoft Office <product name> 2007," right-click the .MSI file, and then click Uninstall.

   Note: The <product name> placeholder represents the name of the 2007 Microsoft Office product.

Step 2: Stop the Office Source Engine service

1. Open the Services window. To do this, click Start, click Run, type services.msc, and then click OK.

2. In the Services window, determine whether the Office Source Engine service is running ("Started" will appear in the Status column). If the service is running, right-click Office Source Engine, and then click Stop.

3. Close the Services window.

Step 3: Remove any remaining 2007 Microsoft Office installation folders.

1. Open the %CommonProgramFiles%\Microsoft Shared folder. To do this, click Start, click Run, type %CommonProgramFiles%\Microsoft Shared, and then click OK.

   Note: On a computer that is running a 64-bit version of Windows 7 or Vista, type %CommonProgramFiles(x86)%\Microsoft Shared, and then click OK.

2. If the following folders are present, delete them:

   • Office12

   • Source Engine

3. Open the %ProgramFiles%\Microsoft Office folder. To do this, click Start, click Run, type %ProgramFiles%\Microsoft Office, and then click OK.

   Note: On a computer that is running a 64-bit version of Windows 7 or Vista, type %ProgramFiles(x86)%\Microsoft Office, and then click OK.

4. Delete the Office12 folder.

5. On the root folder of each hard disk drive, locate and then open the MSOCache folder. If you can't see this folder, you'll need to View hidden files.

6. Open the All Users folder in the MSOCache folder, and then delete every folder that contains 0FF1CE}- text in the folder name.

   Note: This text contains a zero and a one for the letters "O" and "I." For example, {90140000-001B-0409-0000-0000000FF1CE}-C.

Step 4: Remove any remaining 2007 Microsoft Office installation files

1. Open the %AppData%\Microsoft\Templates folder. To do this, click Start, click Run, type %appdata%\microsoft\templates, and then click OK.

2. Delete the following files:

   • Normal.dotm

   • Normalemail.dotm

3. Open the %AppData%\Microsoft\Document Building Blocks folder. To do this, click Start, click Run, type %appdata%\microsoft\document building blocks, and then click OK.

4. Open the subfolder found in the Document Building Blocks folder.

   Note: The subfolder title will be a four-digit number that represent the language of the Microsoft Office suite.

5. Delete the building blocks.dotx file.

6. Close all programs before you follow the rest of the steps.

7. Open the %Temp% folder. To do this, click Start, click Run, type %temp%, and then click OK.

8. On the Edit menu, click Select All.

9. On the File menu, click Delete.

10. Open the %AllUsersprofile%\Application Data\Microsoft\Office\Data folder. To do this, click Start, click Run, type %AllUsersprofile%\Application Data\Microsoft\Office\Data, and then click OK.

11. Delete the opa12.dat file (and ONLY this file).

Step 5: Remove the registry subkeys of the 2007 Microsoft Office system

Locate and then delete the Office 2007 registry subkeys if they are present. To do this, follow these steps:

1. Open Registry Editor. To do this, click Start, click Run, type regedit, and then click OK.

2. Locate and click the following registry subkey:

   • HKEY_CURRENT_USER\Software\Microsoft\Office\12.0

3. On the File menu, click Export, type DeletedKey01, and then click Save.

4. On the Edit menu, click Delete, and then click Yes to confirm.

5. Repeat these steps (2 through 4) for each registry subkey in the following list. Change the name of the exported key by one for each subkey.

   For example type DeletedKey02 for the second key, type DeletedKey03 for the third key, and so on.

   Registry keys to be deleted in 32-bit versions of Microsoft Windows 

   • HKEY_CURRENT_USER\Software\Microsoft\Office\12.0

   • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\12.0

   • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Delivery\SourceEngine\Downloads\*0FF1CE}-*

   • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*0FF1CE*

   • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\Upgrade Codes\*F01FEC

   • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\*F01FEC

   • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ose

   • HKEY_CLASSES_ROOT\Installer\Features\*F01FEC

   • HKEY_CLASSES_ROOT\Installer\Products\*F01FEC

   • HKEY_CLASSES_ROOT\Installer\UpgradeCodes\*F01FEC

   • HKEY_CLASSES_ROOT\Installer\Win32Assemblies\*Office12*

   Registry keys to be deleted in 64-bit versions of Microsoft Windows 

   • HKEY_CURRENT_USER\Software\Microsoft\Office\12.0

   • HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\12.0

   • HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\Delivery\SourceEngine\Downloads\*0FF1CE}-*

   • HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*0FF1CE*

   • HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Installer\UpgradeCodes\*F01FEC

   • HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\*F01FEC

   • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ose

   • HKEY_CLASSES_ROOT\Installer\Features\*F01FEC

   • HKEY_CLASSES_ROOT\Installer\Products\*F01FEC

   • HKEY_CLASSES_ROOT\Installer\UpgradeCodes\*F01FEC

   • HKEY_CLASSES_ROOT\Installer\Win32Asemblies\*Office12*

   Note: The asterisk character (*) in the registry keys represents one or more characters in the subkey name.

Continue to delete the relevant registry keys.

1. Open Registry Editor, locate the following registry subkey:

   • For 32-bit:   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall

   • For 64-bit:    HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall

2. On the File menu, click Export, type UninstallKey01, and then click Save.

3. Under the Uninstall subkey that you located in step 1, click each subkey, and then determine whether the subkey has the following value assigned to it:

   • Name: UninstallString

   • Data: file_namepath\Office Setup Controller\Setup.exe path

     Note: The file_name placeholder represents the name of an installation program, and the path placeholder represents the file path.

4. If the subkey contains the name and the data that are described in step 3, click Delete on the Edit menu. Otherwise, go to step 5.

5. Repeat steps 3 and 4 until you locate and then delete every subkey that matches the name and the data that are described in step 3.

6. Close Registry Editor.

Step 6: Restart the computer

Restart the computer. If the removal was successful, you are finished and can now reinstall Microsoft Office if you want.