[Fixed] Guide to Resolve Microsoft Office Error Code 30145-27

Disable Firewall and Antivirus

The firewall and antivirus can block Microsoft Office installation due to security reasons, leading to Error Code 30145-27. Disable them while installing Office by following these steps:

1. Go to the Control Panel and click on “System & Security.”
2. Open “Windows Firewall.”
3. Choose the option to “Turn Windows Firewall On or Off.”
4. Select “Turn Off Windows Firewall” and save the changes.

Try installing Office again to see if the error is resolved.

Registry Repair

Error Code 30145-27 can result from registry corruption. Follow these steps to repair the registry:

1. Open the Registry Editor by pressing Windows + R and typing regedit.
2. Delete the following registry keys in this order:
   • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\OFFICE\10.0
   • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\OFFICE\11.0
   • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\OFFICE\12.0
   • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\OFFICE\14.0
   • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\OFFICE\15.0
   • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\OFFICE\16.0

   Also delete:

   • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\OFFICE\COMMON
   • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\OFFICE\SOFTWARE
3. Close the Registry Editor and try installing Office again.

Note: Always back up your registry before making changes.

Free Disk Space

Low disk space can prevent Office installation and cause Error  30145-27. Follow these steps:

1. Open “File Explorer” and navigate to drive C (or your primary disk).
2. Identify unnecessary files or folders and delete them.
3. Empty the Recycle Bin to free up space.

Try installing or updating Office again after freeing up sufficient disk space.

SFC Scan to Fix Error Code 30145-27

System file corruption can also cause Error Code 30145-27. Perform an SFC scan:

1. Open the Command Prompt as an administrator.
2. Type SFC /SCANNOW and press Enter.
3. Wait for the scan to complete. Do not close the Command Prompt during the scan.

Note: The scan may either resolve issues or indicate that further action is needed.

Uninstall and Reinstall Office

If the above steps fail, uninstall Microsoft Office and reinstall it:

1. Open the Control Panel and go to “Programs and Features.”
2. Select your Office installation and click “Uninstall.”
3. Follow the prompts to complete the uninstallation process.
4. Visit the official Microsoft Office website to download and reinstall Office.

In Conclusion

If you are still unable to resolve Error Code 30145-27, we recommend chatting with our assured experts for the best solutions. We guarantee quality service and value for your money.

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