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

Thank you also C3SD - and yes, I did noticed that McAfee blurb at the end of the messages but since it was "McAfee" I took it as an improvement of the system.

In any case, as I was answering El Burgo, I unfortunately have no idea as to how to disable that add-on so again, I thank you all out there for helping an old retired guy, thanks.

If you can create an email which is 100% guaranteed to fail then do that and keep it first as your test email.

In Outlook go to "File" to open Account Information.

At the bottom select "Options".

Select "Add-Ins"

Under the section "Active Application Add-Ins" you should see: McAfee AddIn.  The location (on our pcs) was "C:\Program Files\Mcafee\MSK\mskola64.dll (but if you have a 32bit os or a different set up this path may be a bit different) and the type is "COM Add-In".

At the bottom of this dialogue box there should be section "Manage" where you select COM Add-Ins" from the drop down and hit "Go".

In the next box you can disable "McAfee Addin" by unticking it.

On the Add-Ins screen the McAfee add in should now be in the "Inactive Application Add-Ins" section.

OK everything and go back out.  Close down Outlook.  Re-start and check.  If you have a test email then try that and see if it is now OK.  If for some reason the setting reverts, which may be due to a McAfee update re-setting the Add-in to active, you will need to re-do it, but we havent had to at all.

The above is the way to do it for Outlook Office 365, but it will be pretty well the same for older Outlook versions. 

This has worked 100% for us and does not disable any of the McAfee security side - it only disables the footer banner which seems to cause the issue.  There is a thread in the Mcafee support forum which brings this to their attention, but I haven't had a chance to chase it up (I think I put the link to it in my earlier post).

As always, YMMV, Back up before Screw up, Be kind to animals, etc, etc..

Thank you El Burgo.  I appreciate you taking the time to type the instructions.  I tested your instructions and they worked for me.  

I had previously turned off McAfee's Anti-Spam feature.  And that solved my problem.  Today, I went back into McAfee and turned on Anti-Spam. I tested my email and found that the footer banners reappeared ("scanned by McAfee"). Then, I followed your instructions and disabled the McAfee Add-in in Outlook.  Tested again, and the footer banners are gone.  

Do you know:  Is turning off Anti-Spam the same thing as disabling the Add-in?  I'm not tech savvy enough to know if disabling the Add-in severed all connection between McAfee and Outlook.  Or did disabling that Add-in solely remove the footer banners?

Frankly, the answer isn't that important to me.  Either way I slice it, the footer banners went away and I haven't had any Chinese characters appearing.  But, in the back of my mind, I wonder:  Am I better off with Anti-Spam turned on and the Add-in disabled (using the instructions as you provided)?  Or is your method effectively the same thing as turning off Anti-Spam?

Thank you very much El Burgo for your professional instructions, patience and advise !  This is very much appreciated and I'm grateful for your help since this was truly an annoying problem.

So far your suggested remedy works and I haven't had the problem occurring since in my first 4 mails that I replied to  or forwarded.  

Thank you again El Burgo and I wish you a great weekend with best regards from Switzerland.

Also a thank you C3SD for participating in this discussion regarding solving this annoying problem with the McAfee add-in and appearing Chinese characters in the reply/forwarding mails. It is great to know that there are people out there which take the time and make an effort to help out less knowledgeable users like myself.

Also to you I wish you a great weekend and best regards !