Have you ever forgotten the password? Though users can store various kinds of passwords securely in a password manager, or write them down in a safe protected file or notebook. It is still unavoidable that someone forgot Windows password, Mac login password, iPhone passcode, etc. Part 1: Reset Windows password Windows password recovery solutions are pretty much. Free and commercial Windows password reset tools with either simple or complicated operations are available on the internet. Windows Password Unlocker is especially good at Windows 7 password recovery. All you need to do is boot your inaccessible computer from the disk burned by Windows Password Unlocker, and then just click Reset button to remove or change Windows login password. Part 2 Reset Mac password Resetting Mac password is an easy job if you have the installation disc for your Mac. Step 1. Insert your Mac installation disc in your computer and hold the “C” key to boot from disc. Step 2. Select your language, and then select Password Reset when the “Utilities” or “Installer” menu appears. Step 3. Select the Mac hard disk that the forgotten password is on, and then select the username of the forgotten Mac user account. And you’ll then be asked to select a new password. Step 4. Type a new password for the selected Mac user account, type it again to confirm it, and then Click “Save”. Step 5. Restart your Mac as usual from the hard drive and you’ll be able to log in your computer with the newly reset password. Part 3: Reset iPhone password 1. Connect the iPhone to your computer using the USB cable. 2. Hold down the power button on the iPhone. The screen will change asking you to use a slider to power the unit off. Use the slider. 3. Press the power and home (bottom-center) buttons simultaneously. The unit will power back on. After a few seconds, the screen will change to a warning triangle. The iPhone is now in recovery mode. 4. Launch iTunes and click on the iPhone icon on the left side of the screen. Make sure that the “Summary” tab is selected and scroll down until you see the “Restore” button. Click “Restore.” 5. Click “Don’t Back Up,” then click “Restore.” The iPhone will be reverted to its original factory settings, which will clear the passcode.