Like any other software, Office is prone to issues and temporary errors. In this post, we look at different solutions to fix Office error code 30015-26 or 30015-45 that occur in the installation or updating process of the Office suite.
The Office error code 30015-26 or 30015-45 may show a message saying that something went wrong and directing you to go online for assistance.
What causes Office error code 30015-26 or 30015-45?
Software conflicts, missing or corrupted system file, poor connectivity, and insufficient disk space are some of the reasons that can cause error codes 30015-26 or 30015-45 while updating or installing your Microsoft Office.
Fix Office error code 30015-26 or 30015-45
We recommend that you check your internet connection and disable your antivirus and firewall temporarily while performing the solutions in this post to fix Office error code 30015-26 or 30015-45:
- Run the Disk Cleanup tool
- Repair Office
- Use Microsoft Support and Recovery Assistant.
Let us dive deep into these solutions in detail
1] Run the Disk Cleanup tool
Running the Disk Cleanup tool creates more space in your disks allowing your Office installation to have ample storage for its app files. This will consequently resolve the Office error code 30015-26 or 30015-45.
To run the Disk Cleanup tool, press the Windows key + R, type cleanmgr in the Run box, and click OK. Select Drive (C:) and choose the files to delete and click OK to clean up your system.
2] Repair Office
If you already have Office installed but you cannot update it, then try repairing Office.
To repair Office using Control Panel:
- Open Control Panel > Programs > Programs and Features > Uninstall a program
- Locate Office > Right-click on it > Select Change.
- Select Quick Repair or Online Repair to initiate the process.
3] Use Microsoft Support and Recovery Assistant
If repairing Office does not help, download and run the Microsoft Support and Recovery Assistant to completely uninstall Office from your computer.
After uninstalling your Office suite, you can now go ahead and reinstall it. To start the installation process, download Office from the official Microsoft 365 website and select Install apps. Make sure you sign in or sign up with the account associated with your Office. Follow the prompts to download Office on your PC.
To install Office you need to select Run in Edge, Save File in Firefox, or Setup in Chrome. You might get a UAC prompt; select Yes to continue. The installation will start, and all you need is to follow the on-screen directions to complete all steps until you launch your Microsoft 365 apps.
We hope one of the solutions helps you fix the Office error code 30015-26 or 30015-45.
Related: How to fix Microsoft Office installation errors
How to repair Office 365 using CMD?
To repair Microsoft 365 using CMD, search Command Prompt and open it as an administrator. Copy and paste the OfficeClickToRun.exe file path on the Command Prompt and press Enter. For example, the path and the command line can be something like this:
“C:\Program Files\Microsoft Office 15\ClientX64\OfficeClickToRun.exe” scenario=Repair system=x64 culture=en-us RepairType=FullRepair DisplayLevel=True.
The repair option will be invoked and you can choose Online Repair or Quick Repair.
How to uninstall Office using PowerShell?
- Type PowerShell on the Windows search box and choose Run as administrator.
- On the PowerShell window, copy and paste the following command line and press Enter:
Get-AppxPackage -name “Microsoft.Office.Desktop” | Remove-AppxPackage
- Wait for the process to finish.
- You can verify if the Office was removed by copy-pasting the following command on PowerShell and pressing Enter:
Get-AppxPackage -name “Microsoft.Office.Desktop”
Fix: Office Update error code 30088-28,30088-29 or 30016-29.
