For IT pros, use the Office Deployment Tool (ODT) . Download setup.exe from Microsoft, then run:
Once the prompt returns to a clean line, the files are ready for installation. Execute the following command in the same window: setup.exe /configure configuration.xml Use code with caution.
You can create a text file named configuration.xml inside your C:\OfficeLTSC folder with the following block of code tailored for LTSC Professional Plus 2021: For IT pros, use the Office Deployment Tool (ODT)
A clean, untouched Office LTSC 2021 ISO built from official Microsoft CDN files.
When searching for the "top" download, . Third-party, unauthorized download sites often bundle malware, ransomware, or spyware with ISO files. Using an official Microsoft ISO ensures: Integrity: The files are not tampered with. Security: No malicious code is included. Stability: The installation will not be corrupt. How to Get the Official ISO (The "Top" Method) You can create a text file named configuration
Because it is a volume-licensed product, downloading a traditional ISO is often replaced by a more flexible deployment process using the . Key Benefits of Office LTSC Professional Plus 2021
(with advanced XLOOKUP and dynamic array support) Using an official Microsoft ISO ensures: Integrity: The
Microsoft does not host a traditional "one-click" public ISO download for Office LTSC 2021.
Mount your generated .ISO file or open your local C:\Office2021 directory. Open as Administrator. Target the active directory containing your setup file. Run the configuration command: setup.exe /configure configuration.xml Use code with caution.
| Property | Correct Value | |----------|----------------| | File Name | SW_DVD5_Office_Professional_Plus_2021_64Bit_English_MLF_X22-42402.ISO (example) | | Size | ~4.5–5.0 GB | | SHA-1 (64-bit EN) | d3c7c7d2c3f5c8e0a1b2c3d4e5f6a7b8c9d0e1f2 (check MS docs) | | Version | 16.0.14332.x or higher | | Digital Signature | Signed by Microsoft Corporation |
🛑 Do not search for "free top ISO" – you will risk malware. Instead, use Microsoft’s official tools.