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I was trying to launch an electron project and noticed that in CMD, a dialog box kept appearing while I was typing electron, the weird thing is, it only happened when I typed that word.

After further investigation, I noticed it was the combination of the T, R and O key, when pressed while not releasing the previous keys in that order, the system would trigger an F7 call (as though F7 were pressed). And now that I know about the issue, it seems to creep up everywhere, like in FireFox, when I type stroke, trousers or trombone. I get dialogs asking whether I want to activate "Caret Browsing". How do I stop this behaviour?

I have a very new Dell Inspiron 7570 running Win 10 1803. And I doubt this is caused by malware too. If anyone has any info, please help, it's getting on my nerve.

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  • You might test with an external keyboard. This is not common behavior, and if your PC is quite new, you might exchange it for another.
    – DrMoishe Pippik
    Commented Jan 10, 2019 at 23:39
  • Hmm, yeah, my keyboard does double press a key occasionally
    – J-Cake
    Commented Jan 10, 2019 at 23:58

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That looks like a keyboard ghosting A.K.A key rollover issue. It happens because most keyboards uses a matrix to read the pressed keys and you can't press more than N keys without issue. You can't do anything to fix it apart from buying a more expensive keyboard with N-key rollover support

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