Is your computer keyboard acting like it's taken a vow of silence? Don't panic! A locked keyboard is a common tech hiccup, and usually easily resolved. The first culprit is often the "Num Lock" key. Accidentally hitting it can disable the number pad and even some letter keys, making it seem like your entire keyboard is broken. Pressing it again should restore normal functionality.
Another possibility is a sticky key filter being enabled. This feature, designed for accessibility, can sometimes interpret multiple key presses as a request to lock the keyboard. Try pressing the Shift key five times rapidly. A pop-up may appear asking if you want to turn on Sticky Keys; select 'No' or 'Disable'.
Finally, if you're using a laptop, look for a dedicated 'Fn' (Function) key combined with another key (often with a lock icon). This combination might be a specific keyboard lock toggle. If none of these work, a restart is always a good troubleshooting step. Hopefully, your keyboard is back to typing sweet nothings in no time!