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For the Lenovo e431, how do you keep the function key locked. Right now, the default is when you press F1-F12, he multimedia controls are active. To get to the standard F1-F12, you have to hold down Fn+the function key. This used to available in bios, but for this laptop model, it no longer is available. You can press Fn+esc, and it locks it for that session, but when the computer reboots, this is reset back to the default. Is there a way so that the default is not the multimedia function keys, but just the standard, legacy function keys? Thanks.

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Do you have the keyboard drivers installed? Apparently you can change some settings in the control panel… – Jul 6 '13 at 2:21
Thank you for the response, but the E series (E431) does not have that particular setting in the keyboard control panel setting. I tried looking for specific updated drivers for this keyboard, but none were found. – Bob Jul 6 '13 at 18:09

'Fn + Esc' Should lock it, but you'll need bios version 1.25+ to keep this config after reboot, since it had an issue fixed on 1.25:

- (New) Modified Power off USB timing.
- (New) Added New Panel Support.
- (Fix) Fixed an issue related to post hang up issue with special input KB/Mouse on docking
- (Fix) Fixed an issue related to unsupported resolution appeared during VGA/HDMI first plug in.
- (Fix) Fixed an issue that Fn lock can't be kept after reboot.

You can download it (and anything related to ThinkPad Edge E431) here: ThinkPad Edge E431 Download Page en-us

Btw you can also switch Fn and Left Ctrl on BIOS :)

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@i hate e431 keyboard layo i wonder if this answer is troll – Francisco Tapia May 7 '15 at 21:05
It's not, check the version history on the first link I provided. I edited the aswer to reflect it... Yeah I should've picked other name to avoid this confusion, but I stand by it XD – I hate e431 keyboard layout May 7 '15 at 21:24

While I don't have this specific model (I have the W540), I have an option to make it permanent in the BIOS

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My IT guy found it: you have to press Fn+Esc simultaneously, this will turn Function lock on or off and thus enable the function keys with or without the Fn-key.

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OP stated that in the question. ("You can press Fn+esc, and it locks it for that session") The question was hot to turn it on permanently. – gronostaj Nov 8 '13 at 8:34

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