If you see the “Couldn’t install” message when installing Microsoft 365 or Office, it can be caused by storage issues, internet connection problems, or where the installer files are located.
Follow the steps below to fix the problem.
Step 1 – Move the Installer Folder to the C: Drive
After unzipping the Office installer, move the entire folder (including all files and subfolders such as the config file) to your C: drive.
Run the installer from inside that folder on the C: drive.
💡 Many customers have reported that this step alone fixed the issue.
Step 2 – Check Your Internet Connection
Make sure you’re connected to a working Wi-Fi network.
If your connection is unstable, restart your router or switch to another network.
Step 3 – Verify Free Space on C: Drive
Ensure you have enough free space on your C: drive for the Office installation.
Delete or move unnecessary files if storage is low.
Step 4 – Try Moving and Reinstalling Again
If moving to C: didn’t work:
Delete the installer folder from the C: drive.
Unzip a fresh copy of the installer in your Downloads folder.
Move the entire folder to the C: drive again and run the installation from there.
Step 5 – Use Mobile Internet (4G/5G)
Some routers can cause this installation error. Using your phone’s mobile internet can help:
On your phone, go to Settings > Mobile Hotspot (or Internet Sharing) and turn it on.
Connect your PC to the Wi-Fi network created by your phone.
Try the installation again.
If the problem continues after these steps, contact our support team using the chat in the bottom right corner.