About posts

On an iPhone or an iPad, go to Settings>Your Name. The list of devices that you are signed into appear at the bottom. If you are using a Windows PC, you need to be using iCloud for Windows.

Set up and use iCloud for Windows - Apple Support

If you are using iCloud on the PC, click on account details, then click on devices, you will see the devices in there.

If you click on your id top left of the screen and select Subscriptions on the popup you should get a screen showing all content that you are subscribed to, you can then use the 'Filter' button/link partway down on the left-hand side to refine that e.g. to just show threads that you've 'participated' (i.e. posted) in - this link should take you straight there : https://discussions.apple.com/profile/danfromaiud/subscriptions?page=1&content=filterContent&activity=filterParticipated&type=filterDiscussions

Unfortunately, the support community software was updated back in early December 2018 and now you only have access to your posts going back about one month.

There is a way to do it with an internet search and and applying your Apple username in the search, but I can’t remember how to do it. I’m sorry. You could post another question and you should get responses.

The devices and computers that show should be the ones where that account is currently logged into iCloud. If you don't recognise them (you couldn't have logged into your account on someone else's device/computer or work computer ?) you should be able to remove them from the account by following Demo's reply.

I can go back 30 pages in My “Participated” filter subscription. The oldest post I found or myself is dated June 5th. For my “Authored” content, I go back about 6 weeks as well with one post dated May 31.

If you can go back further, I can’t explain it.

Not sure whether in Settings > id on a device if the devices/computers show there might depend upon their iOS/OS versions i.e. if they are on old versions they might not show.

The computer there says 'windows 6' ? Windows went from Vista to 7, they wasn't a '6'

You could try contacting iTunes Support and see if they can see where you are logged in and if that computer shows, and if that can log out if they can : http://www.apple.com/support/itunes/ww (click on your country's flag, the country where you live, and which is therefore the country on the account ; click on Contact Support towards the top right ; click on Get Help under 'Talk To Us’)

No, only the information that you include in the post is visible, we don't have access to your computer.