[Solved] Office couldn’t install: Is your internet connection working


‘Office couldn’t install: Is your internet connection working? Do you have enough free space on your hard drive?’ is a common error.

As you can see, there are many different errors that might occur while installing or uninstalling Office. If this is happening to your computer then it’s a good idea start by freeing up space on the drive and removing any unnecessary programs from within Windows beforehand before proceeding with fixing these issues one-by-one as listed below:

  1. Free up space:

Free up space on your main hard drive (or SSD). You can read how to do so here.

  1. Disable Firewall:

Windows office installation, especially the newer versions such as Office 365, required an active internet connection to download important updates and file structure during the installation and update process. Unfortunately, sometimes the firewall may conflict with the installation process, which will result in the Microsoft Office Error to appear. To fix this, you may try disabling the firewall on your computer during the installation process of Office.

Steps to disable the firewall:

  • Go to Control Panel > System and Security.
  • Click Windows Firewall.
  • Select Turn Windows Firewall on or off.
  • Click OFF.
  • Retry the installation of Microsoft Office to check if it works.


You can re-enable the firewall after Office has been installed and running on your computer.

  1. Remove Previously Installed Office Products & Try to Install Newest Version

In some cases, it is possible that the previous version of office products are still present in the registry. Some of the previous versions such as office 2010 are not compatible with the newer versions such as office 365. To uninstall older office versions, please follow the steps listed below:

  • Navigate to Control Panel
  • Click on “Uninstall A Program.”
  • Select the older or damaged version of Office product to uninstall
  • Select Uninstall to start the uninstallation process.
  • Restart your system to ensure the complete uninstallation process.

After restarting your system, you may try to install the newer version of Office to check if the error appears again or not.

  1. Delete the Office Registry Subkeys

Windows registry contains several key hives of every installed software, including Office. However, when the key hives are corrupted, Microsoft Office cannot function correctly and you may get the error. To fix this error code, we would recommend you try deleting the corrupted key hives.

Steps to delete the incorrectly installed registry keys:

  • Open an elevated command prompt. To do this, open Start, type cmd, and press enter.
  • In the command prompt window, type RegEdit and press enter.
  • Navigate to the key hives of Microsoft Office, for example, ComputerHKEY_LOCAL_MACHINESOFTWAREMICROSOFTOFFICE
  • Delete subkeys which are associated with Microsoft Office, including 11.0, 12.0, 14.0, 15.0, 16.0, COMMON, SOFTWARE
  • Restart your computer to make the change take effect.
  1. Disable Antivirus Software

The next thing you should do is to disable antivirus software from your system. A lot of users have found out that antivirus software such as Norton or McAfee often interferes with the Microsoft Office installation and can cause error. To check if your antivirus is the culprit, you may try temporarily disabling the antivirus software and then try to install Microsoft Office again.

  1. Reinstall Office.

  • Go to www.office.com
  • Sign into your account
  • Download and install Microsoft Office.
  1. Use Office support tool

  • Download the tool from here
  • Run the tool and follow instructions
  1. Reinstall Windows.

Did you know that you can perform a reinstallation of Windows 10 without losing any data? Reinstallation usually fixes most issues especially with registry and other file corruptions that can cause the Microsoft Office error.

How to perform reinstallation of Windows 10.

  • Download the Windows 10 installation media from here.
  • Open the installation media and download Windows 10 ISO. It may take several minutes to hours, depending on your internet connection, to download the Windows 10 ISO file.
  • Go ahead and reinstall Windows 10. The installation time will vary depending on the amount of data and configuration of your PC.


The above solutions are all aimed towards troubleshooting and fixing the error ‘Office couldn’t install: Is your internet connection working’ . To completely fix the problem and get Microsoft Office installed successfully, you can choose to follow any of the above solutions. If none of these worked, you might want get in touch us for computer repair.

I am a computer engineer holding a bachelor's degree in Computer Science, complemented by a Master's in Business Administration from University of Strathclyde, Scotland. I currently work as a Senior IT Consultant in Melbourne, Australia. With over 15 years of...