Windows 10: How do I lock my f function keys on my keyboard without “fn lock” button?

Hello,I just purchased a Onn wireless keyboard from Walmart. My issue is I’m trying to lock my f functions keys, but there is no “fn lock” button on this particular keyboard only “fn” button. Can someone advise me of a workaround for this issue?Thanks in Advance!

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Laptop FN Lock?

My boss has a Sony Vaio VGN-AR190G, it seems like FN lock is on, because when he types certain letters that have numbers when pushed with the function key, it types numbers instead of letters. I do not even see a function lock key on this keyboard. I'm not really sure what to do. I've tried googling the issue but haven't come up with a solution. There was a wireless keyboard plugged into the laptop for awhile, I checked that one for a FN lock key and it doesn't have one either.

 

Microsoft Ergonomic Keyboard, where is the FN or F-Lock? How would I F-Lock on this keyboard?

Thanks for respondind Dave. I do not have a F-Lock button above the backspace key. I purchased this keyboard for work, and I noticed it doesn't have an FN or F-Lock key. I was wondering is there was another method to lock the F-keys?

 

Microsoft Ergonomic Keyboard, where is the FN or F-Lock? How would I F-Lock on this keyboard?

Microsoft Ergonomic Keyboard, where is the FN or F-Lock? How would I F-Lock on this keyboard? I don't have those buttons.