How to Extend Outlook OST to 100GB

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2021-01-31 17:12

The following registry entries extend the maximum file size within Outlook 2016 to 100GB. This should be used with caution as Outlook doesn't seem to like any data file over 50GB.

[HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\PST]
"MaxLargeFileSize"=dword:000186a0
"WarnLargeFileSize"=dword:00017318

Attached is a registry file for import.

Attached files:

Tags: office, outlook
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