Fix for Error 4464565 Summary
KB4464565 is an update rollup for Microsoft Office applications, including Word, Excel, PowerPoint, and Outlook. This update addresses several issues and vulnerabilities present in these applications to ensure they function properly and securely on the latest versions of Windows. The cumulative update includes updates from previous monthly releases and resolves various customer-reported issues since the last release. It is highly recommended for organizations running Office 2016 or later versions, especially those using Microsoft 365 apps.
This rollup primarily addresses bugs that could cause application crashes, data loss, compatibility issues with certain file types, as well as security vulnerabilities that might be exploited by attackers to gain unauthorized access. The update also improves the stability and performance of Office applications, enhancing user experience through various fixes for known issues in features like mail merge operations, Excel’s calculation engine, and Outlook’s calendar functionality.
KB4464565 Update Description: Patching Known Issues Related to Error 4464565
To install KB4464565 on your system, follow these steps:
- Download the update rollup from Microsoft’s official website or through Windows Update.
- Ensure that you have administrative privileges before proceeding with installation.
- If downloaded manually, locate and run the .exe file to start the installation process. Otherwise, go directly to step 4 if using Windows Update.
- In Control Panel, click on ‘Windows Update’ then select ‘Check for updates.’
- Click ‘Install updates’ and wait until the update is fully installed. This may take several minutes depending upon your internet speed and system performance.
- Restart your computer when prompted to complete installation of KB4464565.
- After restarting, verify that Office applications are functioning correctly by testing various features such as opening files, sending emails (Outlook), or creating documents in Word and Excel.
- If issues persist after installation, consider running Microsoft’s Fix it tool or reaching out to technical support for further assistance.
Howto install KB4464565
The update KB4464565 resolves multiple critical issues affecting Office applications. Some of the key fixes include:
- Resolving crashes and application instability in Word when performing mail merge operations with specific fonts.
- Addressing a vulnerability in Excel’s calculation engine that could lead to incorrect results or program crash due to large data sets.
- Mitigating security risks in Outlook by fixing issues related to calendar synchronization, preventing unauthorized access to user calendars and emails.
This update also improves compatibility with third-party add-ins and enhances the overall performance of Office applications on Windows systems. It is crucial for maintaining a secure and stable environment when using Microsoft Office products.
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