My videos are automatically uploaded to Instagram. How can I stop it?

hi Hannah

We are still not on the same page here, and regrettably, this conversation is going in dribs and drabs as you (1) don't address directly my specific questions and (2) you keep changing your advice and keep adding new information to it, which you could have provided in your first reply.

Of course, I read in your article that it relates to  posting to both Instagram and Facebook.

Since my post is about Instagram (I haven't mentioned Facebook in it), and your article states that 

I addressed that requirement by stating that I don't have a Facebook account - meaning that the system could not even try to post my video to Instagram, even if I wanted to. So that excludes this type of error.

Hannah wrote:

The preferences in question can be found when clicking on the Dropbox icon in your system tray/menu bar.

I don't have the Dropbox icon in my system tray/menu bar. But if I did, and clicked on it, what would happen next?  would it open my Account Settings? 

I log in to Drobox in my browser. Ok, so I go to Account then Settings - and I do not have these options there.  Your linked articles direct me to the BACKUP and CAMERA UPLOADS tabs/options - none of which appear in my Preferences.

I vaguely recall than when I first opened my Dropbox account I had this app icon in my system tray, which I have removed as it kept me logged in all the time using  up  significant amounts of my system resources.  I discovered this by chance when investigating why there was such a high usage with very few apps open - and found that Dropbox app in the background was the culprit.

I use Dropbox only occasionally when I need to give access to someone to a large file, which happens on average maybe once or twice a month. Also occasionally, I was going to use Dropbox to post my reels to Instagram.  This doesn't justify using so much of my computer resources by being continuously logged in.

How can I access those BACKUP and CAMERA settings while logged in the browser?

Finally, I was able to recreate the original issue.

Please note -  have already deleted this upload.

About using Dropbox to post reels on Instagram - I have done it before, may be twice. from my Instagram account, where I had an option to upload the video from Dropbox, and it was a quick and easy process. I was taken to my account, selected the video sitting in my folder, and it was downloaded to Instagram. I did all this from my phone.