The error code 30174-4 can occur when antivirus software, a proxy server, or a firewall interferes with the installation of Microsoft Office. Below are steps that may help resolve the issue:
Restart the computer
Sometimes a simple restart can fix the issue. After restarting your PC, try installing Microsoft Office again.Disable or uninstall the antivirus
Strict antivirus settings may block the installation process. If temporarily disabling the antivirus doesn't help, try uninstalling it. After Office is installed, be sure to reinstall your antivirus software.Turn off the firewall
Your firewall might be preventing the installation. To temporarily disable it:
- Open search and type "Firewall".
- Select “Turn Windows Defender Firewall on or off”.
- Check the boxes to turn it off. Don’t forget to re-enable the firewall after Office is installed.
Install Office from a different network
If you're using a corporate or educational network, access to Microsoft servers might be restricted. Try downloading or installing Office from a different network, such as your home internet, or consult your IT department to allow access to Microsoft servers.Use a wired connection
If you're using Wi-Fi, try switching to a wired connection for a more stable internet and retry the installation.Install from a full distribution package
If your internet connection is slow, consider installing Office from a full offline installer that doesn’t require additional downloads during installation. You can find the distribution packages on the official website.