'%3e%3cpath%20d='M8%200C12.4183%200%2016%203.58172%2016%208C16%2012.4183%2012.4183%2016%208%2016C3.58172%2016%200%2012.4183%200%208C0%203.58172%203.58172%200%208%200ZM11.6162%204.38379C11.2257%203.99337%2010.5927%203.99338%2010.2021%204.38379L8%206.58594L5.79785%204.38379C5.40732%203.99334%204.77429%203.99329%204.38379%204.38379C3.99331%204.77429%203.99335%205.40733%204.38379%205.79785L6.58594%208L4.38379%2010.2021C3.99348%2010.5927%203.99341%2011.2257%204.38379%2011.6162C4.77426%2012.0066%205.40734%2012.0065%205.79785%2011.6162L8%209.41406L10.2021%2011.6162C10.5927%2012.0066%2011.2257%2012.0067%2011.6162%2011.6162C12.0067%2011.2257%2012.0066%2010.5927%2011.6162%2010.2021L9.41406%208L11.6162%205.79785C12.0066%205.40735%2012.0066%204.77429%2011.6162%204.38379Z'%20fill='%23080E17'%20fill-opacity='0.46'/%3e%3c/g%3e%3cdefs%3e%3cclipPath%20id='clip0_3761_713'%3e%3crect%20width='16'%20height='16'%20fill='white'/%3e%3c/clipPath%3e%3c/defs%3e%3c/svg%3e)
How to Install 64-Bit Office 2019 Professional Plus from an Offline Image
Question details
The user needs to manually select and install the 64-bit version of Microsoft Office 2019 Professional Plus from an offline installation image file.
- Product
- Microsoft Office 2019 Professional Plus
- Device & OS
- Windows 10
- Scenario
- Installing the 64-bit edition of Office 2019 using a downloaded offline image (.img) instead of the default 32-bit installer.
- Observed behavior
- The standard setup executable may default to 32-bit, requiring the user to navigate the mounted image folder to locate and run the specific 64-bit installer.
Ensure you have uninstalled any existing 32-bit versions of Microsoft Office from your computer, as 32-bit and 64-bit Office installations cannot run simultaneously on the same system.
Manually Run Setup64.exe from the Mounted Image
Use the built-in Windows mounting tool to access the offline image and manually execute the 64-bit installer instead of the default setup file.
Offline installer images (.img or .iso files) for Office 2019 contain both 32-bit and 64-bit setup files. To ensure you get the 64-bit version, you must bypass the root setup executable and launch the specific 64-bit setup file located in the Office folder.
Locate the downloaded Office 2019 image file (e.g., ProPlus2019Retail.img) in your File Explorer. Right-click the file and select 'Mount' from the context menu. This will open a new virtual DVD drive containing the installation files.
Open 'This PC' and double-click the newly mounted virtual drive if it doesn't open automatically. Locate and open the folder named 'Office'.
Inside the Office folder, look for the file named 'Setup64.exe'. Double-click this executable to launch the 64-bit installation process. Follow the on-screen prompts to complete the installation.
Once the installation finishes, open any Office application like Word or Excel. Enter your legitimate product key purchased from an authorized Microsoft source to activate your software.
Try WPS Office: A Lightweight and Free Alternative
If you are struggling with large offline image downloads or encountering installation errors with Microsoft Office, WPS Office offers a lightweight, fast, and completely free alternative that gets you to work in seconds.
- 1. Download the Installer: Visit the official WPS Office website and click the free download button to get the lightweight setup file.
- 2. Run the Setup: Double-click the downloaded executable to start the fast, automated installation process.
- 3. Start Creating: Open WPS Writer, Spreadsheet, or Presentation to instantly start working on your documents with full format compatibility.
Frequently Asked Questions
Why does the Office 2019 installer default to the 32-bit version?
By default, Microsoft historically prioritized the 32-bit version to maintain compatibility with legacy 32-bit COM add-ins and controls. You must manually select Setup64.exe to force a 64-bit installation.
Can I install both 32-bit and 64-bit versions of Office on the same computer?
No, Microsoft does not support installing 32-bit and 64-bit versions of Office products on the same Windows environment. You must completely uninstall one architecture version before attempting to install the other.
How do I unmount the offline image after the installation is complete?
Open 'This PC' in Windows File Explorer, right-click the virtual DVD drive where your Office 2019 image is mounted, and select 'Eject'. This safely unmounts the virtual image.
