If you encounter one of the following errors during the installation of Microsoft Office: 30125-4 or 30125-1011, it may be due to an antivirus program, proxy server, or firewall interfering with the Office installation. Let’s consider the following steps in order, which may help resolve this issue:
1) Sometimes a simple computer restart can help. Try restarting your PC and then attempt to install Microsoft Office again.
2) Disable or uninstall the antivirus program. If the antivirus program has very restrictive settings, this error can also occur. If disabling it does not help, try uninstalling the antivirus application (after installing Microsoft Office, be sure to reinstall your antivirus if you were using one).
3) Disable the firewall. Search => Firewall => On the left, click “Turn Windows Defender Firewall on or off” => Check the boxes to turn off the firewall. After completing the Office installation, also re-enable all firewall functions if you were using this feature.
4) Install Microsoft Office from a different location. This could be the case if you are trying to install/download MS Office on a corporate network or in an educational institution where the network may be restricted. Try performing the installation or download actions from another network, for example, at home or in another place with a different internet connection. You can also contact the IT department to have the system administrator allow network access to Microsoft servers.
5) If you are using Wi-Fi, try installing Office using a wired connection.
6) If you have a slow internet connection, you can try downloading (or installing from a disk, if you have one) the full Microsoft Office installer, which does not require additional downloading during installation. You can download various installers from our website.
Additionally, to ensure everything works correctly in the future, we strongly recommend using only official Microsoft Office installers and original licenses for these applications. You can download and purchase genuine product keys from our online store SoftComputers at the lowest prices. Instant delivery of product keys immediately after payment is processed automatically to your email. Warranty and free technical support 24/7.
Learn more about Microsoft Office products in our catalog on the next page.