How to Repair Microsoft Office Error Code 30088-1021 (0) on Windows Computer

Some Windows users have encountered the error Office could not be installed 30088-1021 (0) when trying to install or update Microsoft Office on their computer. This problem usually occurs on Windows 10.

After thoroughly investigating this particular problem, it was found out that several reasons can cause this error code when installing the latest version of Microsoft Office.

What causes Microsoft Office error code 30088-1021 (0)?

  • Internet connection
  • Damaged Windows files
  • Administrative permissions
  • Multiple copies of MS Office
  • Insufficient memory capacity on PC disk
  • Microsoft Office uninstallation was not completed.

How to troubleshoot Microsoft Office error code 30088-1021 (0)?

Utilize the Microsoft Fix it Tool

  1. Go to the official Microsoft Fix it Tool download page and click the Download Troubleshooter button.
  2. Once the download is complete, double-click the downloaded file to open it.
  3. On the first command line, click Advanced, and then select the Automatically apply repair check box.
  4. In the next window, select the Uninstall or Install option, depending on which action will cause error code 30088-1021 (0) to appear.
  5. Now select the program that caused the problem. In this case, select Microsoft Office.
  6. Then click Yes and finally Yes, try to uninstall.
  7. Wait for the process to complete and restart your computer. After restarting, check to see if the problem is resolved.

Running an SFC scan

  1. Type cmd in the search box and click Run as administrator to run the advanced command line.
  2. In the command line window, type the command below and press Enter to run it.
    sfc /scannow
  3. Wait for the scan to finish. Then restart your computer.

Restore office applications

  1. Open the Run dialog box by pressing the Windows + R keys simultaneously.
  2. Type “appwiz.CPL” in the text box of the dialog box and press Enter.
  3. In the window that appears, locate the Office installation and right-click it.
  4. Select Edit and wait for the first check to complete.
  5. Now select Online Repair and wait for the process to complete.
  6. Finally, restart your computer and check if the problem is resolved.

Frequently Asked Questions

  1. Restore Office programs.
  2. Use the Microsoft Fix it Tool.
  3. Perform an SFC scan.
  4. Try using CleanMyPC.
  5. Uninstall previous Office installations.

Locate the Office icon in the Windows system tray and click it to check the installation progress. If the installation is already in progress, wait until it is finished before you begin installing Office.

According to some concerned users, the error 30088-1021 (0) Office could not be installed can also occur if spyware or malware is installed on your computer, which prevents third-party programs from making changes to the registry.