How to Fix Microsoft Office Error Code 30045‑44

How to Fix Microsoft Office Error Code 30045‑44

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Microsoft Office Error Code 30045‑44 usually occurs when installing or updating Office on Windows. This error indicates the installation has been blocked or interrupted, often due to firewall or antivirus interference, corrupted setup files, or leftover components from earlier installations.

If you encounter this error, start by disabling your firewall and any antivirus software temporarily to ensure they do not prevent Office setup from proceeding. A corrupt download or incomplete installer can also trigger this issue; therefore, download a fresh copy of Office from your copyright or use the offline installer to avoid dependency on live downloads.

Next, uninstall any previous Office installations. On Windows 10 or 11, go to Settings → Apps, select Microsoft Office, and click Uninstall. On older versions of Windows, open Control Panel → Programs and Features, locate Office, and uninstall it. After removal, delete leftover Office folders in both the C:Program FilesMicrosoft Office and C:Program Files (x86)Microsoft Office directories.

To ensure system integrity, open Command Prompt as administrator and run sfc /scannow to repair any corrupted files that may affect the installation. After the scan completes, restart your computer and attempt reinstalling Office using the fresh installer.

If the issue continues, consult the detailed troubleshooting guide provided by WinChatSupport for step-by-step instructions. For further assistance, you can also use live chat support available on the WinChatSupport homepage.

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