I finally got the Dell Laptop running again .. with Dell's website.
This gave me the hint:
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Click Start and then click Control Panel.
Click Switch to Classic View in the upper-left corner when available.
Double-click Administrative Tools.
Double-click Computer Management.
Click the plus button to the left of Services and Applications.
Double-click Wireless Zero Configuration.
Choose Automatic from the drop down menu next to Startup Type:, and the click the Start button.
Click Apply and the OK.================================================== =
Actually 50+ services/programs "Services and Applications" showed "enabled" and I switched them to "automatic", some to "manual". I have no idea how this could have changed. I am happy Mrs. USAFAN's Laptop is running again!