|Open up Task Manager (Ctrl+Shift+Esc) and verify that explorer.exe (not to be confused with Internet Explorer) is running on the Processes tab. If not, go to the Applications tab, click New Task, and type in explorer.exe|
If I misunderstood and your Taskbar is just hidden, read this guide about putting it back in place and locking its position:
Apologies if I don't respond to your reply immediately. I don't check this site daily, but you're welcome to PM me as a reminder.