Error code 30045‑44 during Office installation or update

Error code 30045‑44 during Office installation or update typically appears when a required component can’t be installed—often due to corrupted setup files, interference from antivirus or firewall software, or insufficient permissions. To resolve this issue effectively, follow these steps:

• Restart your computer and close any Office-related processes via Task Manager.


• Temporarily disable antivirus or firewall software that might block the installer.


• Download a fresh Office installer from your copyright to ensure you have uncorrupted setup files.


• Right-click the installer executable and select "Run as administrator" to give it full system privileges.


• Perform a clean boot of Windows to eliminate potential software conflicts, then attempt installation again.


• Open the Control Panel, go to Programs & Features → Microsoft Office → Change, and choose the Repair option to fix installation issues.


• Make sure essential Windows services, like Windows Installer and Background Intelligent Transfer Service (BITS), are running and set to Automatic in the Services console.

For a complete walkthrough with detailed troubleshooting tips, visit the official guide on fixing Office error code 30045‑44.