How to change the 50GB limit of OST in Outlook 2016 client to 90GB

[Marvin Oco]

hi,

How to change the 50GB limit of OST in Outlook 2016 client to 90GB

Thanks

[#2]

Afaik this is in no way supported, but you can go over the 50GB limit by changing the corresponding reg keys as detailed here: https://support.microsoft.com/en-my/help/832925/how-to-configure-the-size-limit-for-both-pst-and-ost...

The 0x0000C800 value (50 GB) is not a hard limit, but it's the maximum *supported* one.

[#3]

hi Vasil, i tried but the key HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\16.0\Outlook  is missing, am i missing something?

[#4 · Accepted solution]

Simply create it, none of the keys under \Policies are mandatory, only used when needed.