outlook logging

Question

Hi All,

I am using windows 10, I am running out of disk space on my laptop. When I checked the following path, I noticed that Outlook logging is consuming almost 30 GB of space: C:\Users\myuser\AppData\Local\Temp\Outlook Logging

Is it safe to empty the Outlook Logging folder? Also, I verified that the "Enable troubleshooting logging" option in Outlook is unchecked. i am not sure why are these logs getting generated. Please guide me.

Answer 1

You can delete the logs at any time. (Probably want to close Outlook first to avoid any possible problems).

There are a couple of Registry values that control detailed logging. You might want to inspect/modify. (NN = Your Outlook Version. Probably 16). Restart Outlook after any changes.

https://learn.microsoft.com/en-us/outlook/troubleshoot/performance/enable-transport-logging

• HKEY_CURRENT_USER\Software\Microsoft\Office\NN.0\Outlook\Options\Mail
• DWORD: EnableLogging
• Values: 1 = logging enabled, 0 = logging disabled

https://learn.microsoft.com/en-us/outlook/troubleshoot/performance/outlook-exe-log-file-in-temp-folder-consumes-too-much-space

• HKEY_CURRENT_USER\Software\Microsoft\Office\NN.0\Common\Debug
• DWORD: TCOTrace
• Delete

https://support.microsoft.com/en-us/topic/how-to-enable-global-and-advanced-logging-for-microsoft-outlook-15c74560-2aaa-befd-c256-7c8823b1aefa

• HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\NN.0\Outlook\Options\Shutdown
• DWORD: FastShutdownBehavior
• Value: 2 {Default = 0}