Update 32-bit Office to get the Large Address Aware (LAA) feature Memory fragmentation means that Outlook is running out of space for memory allocations within its virtual address space. It remains until Outlook is restarted.Īs diagnosed by Microsoft, this is a rendering failure caused by memory pressure within the 32-bit Outlook process. The black boxes may appear anywhere in Outlook.
Some users of the 32-bit versions of Microsoft Office 20 (including the Office 365 versions) who are also on Windows 8 and above, are experiencing an issue where Outlook stops rendering properly, leading to a white screening or black screening effect where text and other graphical elements appear blank.
As before, customers may alternatively choose to use 64-bit Office. The recommendation is to use the latest version of Office, which includes the Large Address Aware (LAA) feature.
May 2018 update: Microsoft has updated their blog to say that their current recommendation addresses the remaining 32-bit Outlook issues.
