设置 Apple Watch 来解锁您的 Mac(Setting up an Apple Watch to unlock your Mac)无需输入密码（甚至使用Touch ID）。Apple在使身份验证过程快速且安全方面做得非常出色。
但很少有任何原因可以阻止Apple Watch解锁您的Mac。如果您一直遇到这种情况，下面的修复列表将帮助您识别和解决问题。
在开始之前先完成以下操作(Following)
由于与安全相关的限制，您的Apple Watch不会总是最终解锁您的MacBook。因此，在您开始之前，以下概要将快速帮助您确定您是否正在处理真正的问题。
解锁您的 Apple Watch：(Unlock your Apple Watch:)您解锁了Apple Watch吗？如果不是，它不会验证您的 Mac 的用户帐户。
佩戴 Apple Watch：(Wear your Apple Watch:)当您不佩戴Apple Watch时， watchOS 会自动锁定它。同样(Again)，这会阻止它解锁您的Mac，因此请系好它。
重新启动后手动登录：每次重新启动(Sign in manually after a restart:)Mac时，您都必须使用您的用户帐户密码登录。不幸的是，这意味着您只能在唤醒它时使用其他身份验证方法。
物理上靠近：(Be physically close:)您必须物理上靠近您的Mac。这样可以防止其他人未经您的许可登录。
打开 Wi-Fi 和蓝牙
Apple Watch(Apple Watch)和Mac结合使用Wi-Fi和蓝牙(Bluetooth)来相互通信。因此(Hence)，您的第一步是检查两个设备是否都激活了各自的Wi-Fi和蓝牙模块。(Bluetooth)
苹果电脑(Mac)
打开Mac上的控制中心(Control Center)。然后，检查Wi-Fi和蓝牙(Bluetooth )图标是否处于活动状态。如果没有，请选择启用它们。
苹果手表(Apple Watch)
按下Digital Crown并打开Settings。然后，向下滚动并深入了解Wi-Fi和蓝牙(Bluetooth )类别。确保(Make)两个开关都打开，如果没有打开它们。
禁用/启用 Wi-Fi 和蓝牙
接下来，尝试在Mac和Apple Watch上禁用和启用(Apple Watch)Wi-Fi和蓝牙(Bluetooth)无线电。这可能有助于修复阻止设备相互通信的任何莫名其妙的错误。
苹果电脑(Mac)
打开控制中心(Control Center)，展开Wi-Fi控件，关闭Wi-Fi旁边的开关，即可停用模块。
对蓝牙(Bluetooth)模块重复相同的操作。然后，等待最多 10 秒钟，然后再次打开Wi-Fi和蓝牙(Bluetooth)。
苹果手表(Apple Watch)
(Swipe)从屏幕底部向上滑动以调出控制中心(Control Center)。然后，点击飞行模式(Airplane Mode)图标以禁用Wi-Fi和蓝牙(Bluetooth)。
等待最多 10 秒，然后再次点击飞行模式(Airplane Mode)图标。
在两台(Both)设备上使用相同的 Apple ID(Same Apple ID)
您的Apple Watch和Mac必须使用相同的Apple ID。如果您有多个帐户和设备，最好排除任何混淆。
苹果电脑(Mac)
打开Apple菜单并选择System Preferences。然后，选择Apple ID。您会在屏幕左上方找到您的Apple ID 。
苹果手表(Apple Watch)
按下Digital Crown并选择Settings。然后，轻点屏幕顶部的个人头像以显示您的Apple ID。
重启两个设备
如果您的Apple Watch仍然无法解锁您的Mac，请尝试重新启动两台设备。这有助于解决系统软件中的奇怪问题。
苹果电脑(Mac)
打开Apple菜单并选择重新启动(Restart)。然后，再次选择重新启动(Restart )以确认。
苹果手表(Apple Watch)
按住侧面(Side )按钮。然后，向右拖动关闭电源(Power Off )滑块以关闭设备。
等待最多 30 秒，然后再次按住侧面(Side )按钮以重新启动它。
禁用屏幕共享(Screen Sharing)和Internet 共享(Internet Sharing)
屏幕共享和互联网共享会使您的Apple Watch无法解锁您的Mac。如果您激活了一项或两项功能，请尝试禁用它们。
为此，请打开 Mac 的系统偏好设置( System Preferences )面板并选择网络(Network)。然后，取消选中屏幕共享(Screen Sharing)和Internet 共享(Internet Sharing)旁边的框。
禁用自动登录
您是否为您的Mac用户帐户激活了自动日志记录？虽然这使得启动到桌面区域变得快速而轻松，但降低的安全性也会产生冲突并阻止您的Apple Watch对您进行身份验证。因此，最好在打开密码时回退到使用您的密码。
为此，请打开System Preferences并选择Users & Groups。然后，选择Login Options并将Automatic login设置为Off。
注意：(Note: )如果您无法编辑您的登录首选项，请选择单击锁进行更改(Click the lock to make changes)并输入您的帐户密码。
更新 macOS 和 watchOS
如果您的Apple Watch由于系统软件中的任何已知错误而无法解锁您的Mac，最好的解决方法是更新 macOS 和 watchOS。
苹果电脑(Mac)
打开Apple菜单并转到系统偏好设置(System Preferences)>软件更新( Software Update)。如果您看到挂起的更新，请选择立即更新( Update Now)。
苹果手表(Apple Watch)
将Apple Watch放在充电器上。然后，按下Digital Crown并选择设置(Settings)>通用(General )>软件更新(Software Update)。如果您看到挂起的更新，请选择立即更新( Update Now)。
了解如果您在更新 Mac(trouble updating your Mac)或Apple Watch时遇到问题该怎么做。
在Mac上重新激活Apple Watch 自动解锁(Apple Watch Auto-Unlocking)
停用并设置Apple Watch以从头开始解锁Mac是使问题消失的另一种方法。(Mac)
1. 打开Apple菜单并选择系统偏好设置(System Preferences)。
2. 选择安全和隐私(Security & Privacy)。
3. 在安全选项卡下，取消选中(Security )使用 Apple Watch 解锁应用程序和 Mac(Use your Apple Watch to unlock apps and your Mac)旁边的框。
4. 重新启动您的 Mac。
5. 重新访问步骤3(3)中的屏幕并选中使用 Apple Watch 解锁应用程序和 Mac(Use your Apple Watch to unlock apps and your Mac)旁边的框。
6. 输入您的用户帐户和密码，然后选择解锁(Unlock)。
7. 退出系统偏好设置( System Preferences)。
取消配对并重新连接 Apple Watch
如果上述修复均无效，则需要取消配对并将Apple Watch重新连接到 iPhone。该过程将 watchOS 设备重置为出厂默认设置，这有助于解决系统软件中的潜在问题。
为此，请在 iPhone 上打开Watch应用，选择所有手表( All Watches)，点击Apple Watch旁边的信息(Info )图标，然后选择取消配对 Apple Watch(Unpair Apple Watch)。
然后您的 iPhone 应该备份并重置您的Apple Watch。立即重新连接您的 watchOS 设备。不要(Don)忘记在设置过程中恢复您的数据。
有关全面的分步说明，请参阅本指南以备份和重置 Apple Watch(backing up and resetting an Apple Watch)。
完成Apple Watch设置后，前往Mac上的系统偏好设置(System Preferences )>安全和隐私，然后选中(Security & Privacy )使用 Apple Watch 解锁应用程序和 Mac(Use your Apple Watch to unlock apps and your Mac)旁边的框。
像往常一样开始解锁
希望上述解决方案有效，您可以重新使用Apple Watch解锁Mac。运行更快的修复程序（例如切换Wi-Fi和蓝牙(Bluetooth)无线电）将消除再次出现的问题。此外，请确保让您的Mac和Apple Watch保持最新状态，以尽量减少重复遇到相同问题的机会。
How to Fix Apple Watch Not Unlocking Mac
Setting up an Apple Watch to unlock your Mac beats having to type in a password (or even use Touch ID) hands down. Apple has done an incredible job of making the authentication process fast and secure.
But rarely, any number of reasons can stop the Apple Watch from unlocking your Mac. If that’s what you keep experiencing, the list of fixes below will help you identify and address the problem.
Go Through the Following Before You Start
Due to security-related limitations, your Apple Watch won’t always end up unlocking your MacBook. So before you start, the following rundown will quickly help you determine if you’re dealing with a genuine issue or not.
Unlock your Apple Watch: Have you unlocked your Apple Watch? If not, it won’t authenticate your Mac’s user account.
Wear your Apple Watch: watchOS automatically locks down your Apple Watch when you aren’t wearing it. Again, that prevents it from unlocking your Mac, so strap it on.
Sign in manually after a restart: You must sign in with your user account password whenever you restart your Mac. Unfortunately, that means that you can only use alternative methods of authentication when waking it up.
Be physically close: You must be physically close to your Mac. That prevents others from logging in without your permission.
Turn On Wi-Fi and Bluetooth
Your Apple Watch and Mac use a combination of Wi-Fi and Bluetooth to communicate with each other. Hence, your first course of action is to check if both devices have their respective Wi-Fi and Bluetooth modules active.
Mac
Open the Control Center on your Mac. Then, check if the Wi-Fi and Bluetooth icons are active. If not, select to enable them.
Apple Watch
Press the Digital Crown and open Settings. Then, scroll down and dig into both the Wi-Fi and Bluetooth categories. Make sure that both toggles are switched on, and turn them on if they aren’t.
Disable/Enable Wi-Fi and Bluetooth
Next up, try disabling and enabling the Wi-Fi and Bluetooth radios on your Mac and Apple Watch. That may help fix any inexplicable bugs preventing the devices from communicating with each other.
Mac
Open the Control Center, expand the Wi-Fi control, and turn off the switch next to Wi-Fi to deactivate the module.
Repeat the same for the Bluetooth module. Then, wait for up to 10 seconds before turning both Wi-Fi and Bluetooth on again.
Apple Watch
Swipe up from the bottom of the screen to bring up the Control Center. Then, tap the Airplane Mode icon to deactivate Wi-Fi and Bluetooth.
Wait for up to 10 seconds and tap the Airplane Mode icon again.
Use the Same Apple ID on Both Devices
Your Apple Watch and Mac must use the same Apple ID. If you have multiple accounts and devices, it’s a good idea to rule out any confusion.
Mac
Open the Apple menu and select System Preferences. Then, select Apple ID. You will find your Apple ID listed at the top left of the screen.
Apple Watch
Press the Digital Crown and select Settings. Then, tap your profile portrait at the top of the screen to reveal your Apple ID.
Restart Both Devices
If your Apple Watch continues to fail to unlock your Mac, try restarting both devices. That helps resolve odd snags in the system software.
Mac
Open the Apple menu and select Restart. Then, select Restart again to confirm.
Apple Watch
Press and hold the Side button. Then, drag the Power Off slider to the right to turn off the device.
Wait for up to 30 seconds before holding down the Side button again to reboot it.
Disable Screen Sharing and Internet Sharing
Screen sharing and internet sharing can make your Apple Watch not unlock your Mac. If you’ve activated one or both functionalities, try disabling them.
To do that, open the Mac’s System Preferences pane and select Network. Then, uncheck the boxes next to Screen Sharing and Internet Sharing.
Disable Automatic Login
Have you activated automatic logging for your Mac user account? While that makes booting into the desktop area quick and painless, the reduced security can also create conflicts and prevent your Apple Watch from authenticating you. So it’s best to fall back to using your password when turning it on.
To do that, open the System Preferences and select Users & Groups. Then, select Login Options and set Automatic login to Off.
Note: If you can’t edit your login preferences, select the Click the lock to make changes and enter your account password.
Update macOS and watchOS
If your Apple Watch fails to unlock your Mac because of any known bugs in the system software, the best way to fix that is by updating both macOS and watchOS.
Mac
Open the Apple menu and go to System Preferences > Software Update. If you see a pending update, select Update Now.
Apple Watch
Place your Apple Watch on its charger. Then, press the Digital Crown and select Settings > General > Software Update. If you see a pending update, choose Update Now.
Learn what to do if you have trouble updating your Mac or Apple Watch.
Re-activate Apple Watch Auto-Unlocking on Mac
Deactivating and setting up your Apple Watch to unlock your Mac from scratch is another way to make the problem disappear.
1. Open the Apple menu and select System Preferences.
2. Select Security & Privacy.
3. Under the Security tab, uncheck the box next to Use your Apple Watch to unlock apps and your Mac.
4. Restart your Mac.
5. Revisit the screen in step 3 and check the box next to Use your Apple Watch to unlock apps and your Mac.
6. Enter your user account and password and select Unlock.
7. Exit the System Preferences.
Unpair and Re-Connect Apple Watch
If none of the fixes above worked, it’s time to unpair and re-connect your Apple Watch to your iPhone. The procedure resets the watchOS device to factory defaults, which helps resolve underlying issues in the system software.
To do that, open the Watch app on your iPhone, select All Watches, tap the Info icon next to the Apple Watch, and select Unpair Apple Watch.
Your iPhone should then back up and reset your Apple Watch. Immediately follow that by reconnecting your watchOS device. Don’t forget to restore your data during the setup procedure.
For comprehensive step-by-step instructions, refer to this guide to backing up and resetting an Apple Watch.
Once you’ve finished setting up your Apple Watch, go to System Preferences > Security & Privacy on your Mac and check the box next to Use your Apple Watch to unlock apps and your Mac.
Begin Unlocking As Usual
Hopefully, the solutions above worked, and you are back to using your Apple Watch to unlock your Mac. Running through the quicker fixes (such as toggling the Wi-Fi and Bluetooth radios) will eliminate the issue should it recur. Also, make sure to keep both your Mac and Apple Watch up-to-date to minimize the chances of repeatedly running into the same problem.
