Outlook 2016 - chinese characters appearing in messages when replying/forwarding

I use office 365 ProPlus and had the same issue.

I found a solution that worked for me: disabling all add-ins in Outlook and then enabling them back.

1. In Outlook, go to File->Options->Add-ins
2. Click on Go (right to "COM Add-ins") and un-check all add-ins that are checked in the list.
3. Click OK and exit from Outlook (File->Exit)
4. Run outlook and verify that the problem is solved.
5. I repeated stage 2 to 4 but this time checked all add-ins back and the problem seems to be solved.  

Hope it will work for you too.

me too what is it?

????

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Hi Marcin,

Just to confirm that Marcin's answer is the only right solution to the Chinese garbled character issue. We just bought new Dell Latitudes and are located in The Netherlands. When we unchecked the checkbox next to Beta: Use Unicode UTF-8 for worldwide language support  and restarted the issue was resolved.

Thanks Marcin, after 2 days of digging I can peacefully go to sleep!

Hi All,

Our organisation was also affected by this issue: both Chinese-alike garbled characters in Outlook Calendar responses, To-do comments and OneNote entries. What seemed odd to us, the problem was noticed only on the newly delivered Latitudes received from Dell Nederland and when using the OEM Windows 10 image. Previously, we were using our in-house deployment image, and the issue never happened. It made us wonder that most likely, the problem lays in Windows 10 image-specific settings.

We tried the solutions suggested above, including changing the languages both in Outlook and the system, changing encoding for outgoing messages and the language preference for headers, etc. The issue eventually came back after a week or so.

What was a helpful finding is that the issue does not appear when the Exchange Cached Mode in Outlook is disabled or when the users switched to OWA for some time. It pointed us into the settings that would affect the OST file, or other caches of Outlook saved on the local drive.

It turned out that in our case, the issue was caused by the setting "Beta: Use Unicode UTF-8 for worldwide language support". With new Dells, the OEM Windows 10 image already had the setting enabled by default - and as you can probably figure out by now, it was disabled in our previous deployment images.

The setting is available in Control Panel > Region > Administrative > Change system locale > uncheckthe box next to Beta: Use Unicode UTF-8 for worldwide language supportand restart the device.

I hope the above helps others too!

Best,

Marcin

Hi All,

I had the same issue and fixed this by doing the following:

Open Outlook, click on File> Options> Language>

Under Office Display Language there were 2 options:

1.    Match Microsoft Windows <preferred>

2.    English

I moved these around so that they were displayed as follows:

1.    English <preferred>

2.    Match Microsoft Windows

After restarting Outlook the issue had resolved.

Hope this helps.