HELP with Windows 10? Lost my task bar?

Maybe it updated last night when I turned it off? All I know is this morning it was gone, and I’ve turned it off and on again, still does not work but I get some weird screens showing date, time and pics.

WE have no IT Dept. at work and I’m afraid to just try anything on the internet.

I did run AVAST scans both Monday (month end) and when I lost my task bar. It did not show any viruses or malware.

I had a devil of a time finding my e-mail program and internet program, but I got them now, but cannot minimize them.