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As far as I can tell, it is possible to put a ♥ character in a Windows user password. The problem is, when you get to the log on screen, how can this be typed?

As far as I can tell, any symbol that is of the form Alt+xyz, but the ♥ character for example is only Alt+3.

How can I type this character (and others like it) at logon?

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Try Alt + number pad keys. This used to work on older versions of windows. I don't have windows 8 or a number pad to test this though – FDinoff Jul 21 '13 at 19:11
@FDinoff that is what I am doing now. It will not let me do Alt + single number – soandos Jul 21 '13 at 19:15
I'd advise against it, simply because being able to enter them is so iffy, and may well depend on the particular computer and browser version you're using. (But if you're using a computer that does not have the separate keypad, remember you need to do "Num Lock" before you type the key combo on the M-9 keys of the simulated keypad array.) – Daniel R Hicks Jul 21 '13 at 19:16
@DanielRHicks This is for windows login on a laptop. It will always have a num pad. – soandos Jul 21 '13 at 19:19
@soandos try padding with 0s? – FDinoff Jul 21 '13 at 19:19
up vote 5 down vote accepted

On Windows 8 logon screen you just have to be really fast to type ♥ in password field. Don't hold the Alt for too long. I don't know how fast are your fingers, but you can probably forget about codes longer than 3 characters.

Besides those characters are obviously not supported I would not advice to use them, because they won't add as much entropy as you may expect.

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About the entropy : – Martheen Cahya Paulo Jul 22 '13 at 3:42

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