Word 2019 spontaneously corrupts all other open Word files

Lenka_Kerumova 

Here is some information provided mid-last year by the Word Product Team:

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The “Disable Hardware Graphics Acceleration” UI Option has been removed for certain configurations of Office on Windows 10. This decision was motivated by changes in Office’s rendering pipeline to utilize the Windows UI Composition APIs. To ensure performance and stability, we need Office to match system-wide hardware acceleration settings. 

The UI Option to “Disable Hardware Graphics Acceleration” was originally introduced to help customers diagnose rendering glitches/crashes in an era when graphics hardware drivers were particularly unstable. Since then, stability of the overall rendering pipeline has increased, and we have added many mitigations to automatically disable hardware acceleration as needed. We believe the UI Option is no longer relevant to most users. 

Additionally, we have found that over the years this option has been incorrectly suggested as a fix to a wide array of unrelated issues. As a result, we have found widespread side-effects hampering performance across large organizations. The option was never meant to be permanently checked, rather it was meant to serve as a trouble-shooting step.  

We are committed to fixing rendering issues that customers are experiencing. Although many of these issues are now detected and fixed automatically, please do report any rendering issues you have to our customer support. 

You can find specific troubleshooting steps for Rendering/Display issues here: 

https://docs.microsoft.com/en-us/office/troubleshoot/settings/office-display-issues 

If you still need to alter Hardware Acceleration settings to diagnose a rendering issue, you can do so through the following Windows settings: 

Choose which Graphics Adapter Office apps use: 

• Navigate to: Settings > Display > Graphics Settings 
• From here you can add a Desktop application using the "Browse" button. 
• For each Desktop application clicking "Options" will allow you to override which GPU is used when there are multiple GPUs on the machine. 

Disable one or more Graphics Adapters via Device Manager: 

• Navigate to: Start > Device Manager 
• Expand the "Display Adapters" node 
• Right-click and choose "Disable device" on the Graphics Adapter you wish to disable. 
• If all Graphics adapters are disabled, Windows will default to Software rendering via the Microsoft Basic Display Adapter. 

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Hey kbird1950 ,

Thank you for replying. I am quite surprised that you got no support from MS so far, but I keep my fingers crossed for you that you solve the issue. No computer is the same and what worked for me may not work for you; I am sorry I could not be of more help.

Let us know, though, as this is a real problem and the experience from it will further our education.