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Everybody has PIN codes for ATM cards, telephones, just about everything.

Reusing PIN codes on multiple devices (and credit cards) is dangerous — somebody looks over your shoulder, watches you type your Windows 10 PIN, and then lifts your wallet. Such nefarious folks can have a good time, unless the PINs are different. Word to the wise, eh?

PINs have lots of advantages over passwords and picture passwords. They’re short and easy to remember. Fast. Technically, though, the best thing about a PIN is that it’s stored on your computer — it’s tied to that one computer, and you don’t have to worry about it getting stored in some hacked database or stolen with your credit card numbers. In recent versions of Windows 10, the PIN is part of Windows Hello — Microsoft’s service for secure authentication options, which improves with each major update. More on that in the next section of this chapter. For now, realize that creating a PIN is easy. Here’s how to do it:

1  Tap or click Start, the Settings icon, and then Accounts.

2 On the left, choose Sign-In Options.The password settings for your account appear (refer to Figure 2-6).

3 Click or tap Windows Hello PIN and then Add.Windows 10 asks you to verify your password — it must be your typed password; a picture password won’t do.

4 Type your password, and tap or click OK.Windows 10 gives you a chance to type your PIN, as in Figure 2-8, and then retype it to confirm it. Note: Most ATM PINs are four digits, but you can go longer, if you want — Windows 10 can handle just about any PIN you can throw at it.FIGURE 2-8: Creating a PIN is easy.

5 Type your PIN, confirm it, and tap or click OK.You can log in with your PIN.