Creators update Taskbar shrinks after reboot

Ahoy! I've upgraded Windows 10 Pro 64 bit to the Windows 10 Creators Edition, and the taskbar clock shows the correct time but ought to have a : separator, but instead it now has a square  shape separator. It wasn't like this prior to the...

Does anyone know how to remove it, I take it its some kind of chat program.

Installed the Windows 10 Creators update for the 3rd time to completion each time. After the install, everything was running as expected. I was looking at a digital magazine within Zinio, and after completing several issues the program lockup...

After the Creators Update I experience this odd behaviour: every time I reboot the system (or restart explorer) almost all my pinned taskbar item disappears this happens in the hidden TaskBar folder:...

I have had the taskbar configured in two rows, with the bottom row being reserved for Quick Launch, for many years ever since the functionality was available on Win98a or XP. It has never failed, through all upgrades and updates. But after the...