Hi Diane. I'm Greg, 10 years awarded Windows MVP, specializing in Installation, Performance, Troubleshooting and Activation, here to help you.
The fastest way is to press Alt + Tab, hold Alt while tabbing through the icons and pressing Del for each one you want to close.
Other options and illustrations here: https://www.intowindows.com/close-all-programs-...
I hope it helps to have all options. Feel free to ask back any questions and I will be here to help.
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