Ciao Maggie,
I'm Ugo, willing to help other Microsoft customers.
Regarding your question, you can disable Windows shortcut using Group Policies.
- Type gpedit + ENTER on your Windows Search Bar (bottom left)
- In the new window, go to User Configuration -> Administrative Templates -> Windows Components -> File Explorer
- Find Turn off Windows Key hotkeys and double click on it
- Select Enable, then click ok
Please let me know if this helped somehow.
Ciao
Ugo