On the first day after your vacation, you sit down at your PC, type in the password — and fail. Windows says: “The password is incorrect. Please repeat the process” and expects you to click “OK.” ...

You can unlock your Android phone even if you've forgotten the passcode, but you'll usually need to factory reset the phone.

Knowing how to unlock a disabled iPhone can save you a lot of trouble. Here's how to do it, even if you've forgotten the ...