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I just received a Lenovo Thinkpad W520 and at the login screen left ctrl-alt-del won't work for me but the right ctrl-alt-del will. I have no idea of the history of this particular computer. Is there a setting which I could undo to allow left ctrl-alt-del to work again, or is this a sign of a well-worn computer/laptop, or what can I do to restore the combo I am so used to?
1Do other left+ctrl combinations work as expected? Like ctrl+c, ctrl+v etc? – DavidPostill – 2016-01-18T16:10:23.420
Sounds like that left CTRL or ALT key is broken. Have you confirmed they work? – Ƭᴇcʜιᴇ007 – 2016-01-18T16:24:55.173
@DavidPostill Actually, it is the same for cut/paste it looks like. Right ctrl-c and ctrl-v work left ctrl-c and left ctrl-v do not work. – demongolem – 2016-01-18T16:34:44.577
Try some of the suggestions in How to clean a keyboard to clean underneath the left ctrl key.
– DavidPostill – 2016-01-18T16:36:42.320