run safe mode again with the wifi off. should let you remove it.
i have an acer laptop too, also with keyboard issue. You need to replace the keyboard or use an external one. If the key pops off altogther, then restarting the pc can become an issue because the bios detects the broken keyboard, even with an external attached. Keyboard replacements cost around $60 online, so if you’re only being charged an additional 20 to repair it, that’s a good deal. You could purchase a new replacement, and then go online to learn how to tear your computer apart to replace the keyboard, or you can pay someone else $20 to do it for you. Or you can spend $10 for an external usb keyboard. The choice is your.
I do hate the keyboards they use on these acers for that reason. My problem key is the M key. Once the key was gone, then the rubber nipple under the key eventually popped off and I have to bang it if I reboot the machine because the computer detects the key as fully depressed...it’s a pita.