重新安装操作系统有助于解决任何设备中的几个问题。这些问题的范围可能从硬件识别错误到与软件相关的问题。保持 macOS 更新是确保数据安全和设备性能的最重要因素。此外，macOS 更新还改进了所有应用程序的功能，以便用户获得无缝体验。但是，许多Mac用户报告了与安装或重新安装 macOS 相关的软件问题。他们经常遇到错误说明，此项目暂时不可用。请稍后再试(This Item Is Temporarily Unavailable. Please Try Again Later)。因此(Hence)，我们通过编译故障排除方法列表来帮助您解决此错误。因此，请阅读以下内容以了解更多信息！
如何修复此项目暂时不可用。请稍后再试错误(How to Fix This Item is Temporarily Unavailable. Please Try Again Later error)
在开始故障排除之前，让我们先看看您可能会遇到此错误的原因。它们如下：
-
登录凭据不正确：(Incorrect Login Credentials:)此错误的最可能原因是AppleID和登录(Login)详细信息不正确。如果您最近购买了一台二手MacBook，请务必先注销您的设备，然后使用您的AppleID登录。
-
不匹配的 AppleID(Mismatched AppleID)：如果您拥有多台设备，这些设备可能会因为AppleID不匹配而无法运行。您可以为每个帐户创建一个新帐户，也可以确保所有Apple设备都连接到同一个 ID。
-
Malware/Virus：有时从第三方网站下载更新，也会在您的计算机上下载病毒。这可能是Mac上 This (Mac)Item Is Temporarily Unavailable错误的可能原因。
方法 1：登录您的 Apple ID 帐户
(Method 1: Sign in to your Apple ID Account
)
如果您想在MacBook上安装或重新安装 macOS ，您将需要一个Apple ID。如果您没有，则必须通过iCloud.com 创建一个新的。(iCloud.com.)您还可以在Mac上打开(Mac)App Store并在此处创建或登录Apple ID。按照给定的步骤通过 iCloud 登录您的Apple帐户：
1. 打开 macOS Utilities 文件夹(Folder)并单击Get Help Online。
2. 您将被重定向到Safari上的iCloud 网页(iCloud webpage)。在这里，登录(Sign in )您的帐户。
3.不，回到安装屏幕(installation screen)完成macOS更新。
方法 2：确保正确的 Apple ID(Method 2: Ensure Correct Apple ID)
此项目暂时不可用。请稍后(This Item Is Temporarily Unavailable. Please Try Again Later )重试错误主要发生在安装程序已下载并且用户尝试使用其Apple ID登录时。在这种情况下，确保您输入了正确的详细信息非常重要。(correct details.)
例如：(For instance:)如果您要安装新的 macOS，请确保输入之前安装 macOS 时使用的Apple ID 。如果你使用不同的ID，你肯定会遇到这个错误。
另请阅读：(Also Read:) 如何访问您的 Apple 帐户(How to Access Your Apple Account)
方法3：删除系统垃圾(Method 3: Delete System Junk)
如果您已经使用 MacBook 很长时间了，那么肯定已经积累了很多不需要和不必要的系统垃圾。这包括：
- 当前未使用的文件和文件夹。
- Cookie 和缓存数据。
- 重复的视频和图像。
- 应用程序偏好数据。
杂乱(Cluttered)的存储往往会减慢Mac处理器的正常速度。它还可能导致频繁冻结和阻碍软件下载。因此，它也可能导致此项目暂时不可用。请稍后再试(This Item Is Temporarily Unavailable. Please Try Again Later )错误。
- 使用CleanMyMac X(CleanMyMac X) (CleanMyMac X )等第三方应用程序自动清除不需要的数据和垃圾。(automatically.)
- 或者，手动(manually)删除垃圾，如下所述：
1.在Apple 菜单中选择(Apple Menu)关于本机(About this Mac)。
2. 切换到存储(Storage )选项卡，如图所示。
3. 在这里，点击管理...(Manage…)
4. 将显示类别列表。从这里，选择不需要的文件(unnecessary files)并删除这些(delete these).
方法 4：设置正确的日期和时间(Method 4: Set Correct Date and Time)
虽然最好让设备自动设置日期和时间，但您也可以手动设置。首先检查屏幕顶部的日期和时间。根据您的Time Zone应该是正确的。以下是如何使用终端(Terminal)来验证它是否正确：
1. 按键盘上的Command + Space 按钮。(button)这将启动Spotlight。在这里，键入终端(Terminal )并按Enter启动它。
或者，从 Mac Utility 文件夹中打开(Utility Folder)终端(Terminal)，如下图所示。
2.终端(Terminal)应用程序现在将打开。
3. 使用日期命令字符串(Date Command String)，按以下方式输入日期：date <monthdatetimeyear >
注意(Note)：确保数字之间不要留任何空格(not leave any spaces)。例如，2019 年(June 2019)6 月 6 日13:50 在终端中写为日期(date) 060613502019。
4. 现在关闭此窗口并重新输入您的 AppleID(re-enter your AppleID)以恢复之前的 macOS 下载。此项目暂时不可用。请稍后再试 (This Item Is Temporarily Unavailable. Please Try Again Later )错误不应再出现。
另请阅读：(Also Read:) 修复 iTunes 自行打开(Fix iTunes Keeps Opening By Itself)
方法 5：恶意软件扫描
(Method 5: Malware Scan
)
如前所述，从第三方应用程序和网站鲁莽下载可能会导致恶意软件和错误，这将继续导致Mac上的(Mac)This Item Is Temporarily Unavailable错误。您可以采取以下预防措施来保护您的笔记本电脑免受病毒和恶意软件的侵害。
1.安装可信杀毒软件：(Install trusted anti-virus software: )
- 我们建议您下载知名的防病毒程序，例如Avast和McAfee。
- 安装后，对可能导致此错误的任何错误或病毒运行完整的系统扫描。(complete system scan)
2.修改安全和隐私设置：(Modify Security & Privacy Settings:)
- 如前所述，转到Apple Menu > System Preferences 。
- 选择安全和隐私(Security & Privacy)，然后单击常规。(General.)
-
(Unlock Preference Pane)通过单击左下角的锁定( lock) 图标来(icon)解锁首选项窗格。
- 选择 macOS 安装源：App Store或App Store & Identified Developers。
注意：(Note:) App Store选项允许您从Mac App Store 安装任何应用程序。(Mac App Store.)而App Store和Identified Developers选项允许从App Store以及注册的Identified Developers安装应用程序。
方法 6：擦除 Macintosh HD 分区(Method 6: Erase Macintosh HD Partition)
这是最后的手段。您可以擦除Macintosh HD(Macintosh HD)磁盘中的分区以修复此项目暂时不可用。请稍后再试(This Item Is Temporarily Unavailable. Please Try Again Later )错误，如下：
1. 将您的 Mac 连接到稳定的互联网连接(stable internet connection)。
2. 通过从Apple 菜单中选择(Apple menu)重新启动(Restart)来重新启动设备。
3. 按住Command + R键，直到出现 macOS Utilities 文件夹(folder)。
4. 选择磁盘工具(Disk Utility)并按继续(Continue)。
5. 选择查看(View)>显示所有设备(Show All Devices)。然后，选择Macintosh HD disk。
6. 单击顶部菜单中的擦除(Erase )。
注意：(Note:)如果此选项显示为灰色，(greyed out, )请阅读Apple Erase an APFS volume support page。
7. 输入以下详细信息：
-
(Macintosh HD)卷名(Volume Name)中的Macintosh HD
-
APFS 作为选择 APFS 格式。(choose an APFS format.)
8. 根据具体情况选择擦除卷组(Erase Volume Group)或擦除(Erase )按钮。
9. 完成后，重新启动您的 Mac。(restart your Mac. )重新启动时，按住Command + Option + R 键，(keys,)直到看到一个旋转的地球。
macOS 现在将再次开始下载。完成后，您的Mac将恢复到出厂(Factory)设置，即恢复到在其制造过程中预下载的 macOS 版本。您现在可以将其更新到最新版本，因为此技术将修复此项目暂时不可用(This Item Is Temporarily Unavailable)错误。
受到推崇的：(Recommended:)
我们希望本指南能够帮助您修复 Mac 上的 This Item Is Temporarily Unavailable 错误(fix This Item Is Temporarily Unavailable error on Mac)。如果您有任何进一步的疑问，请在下面的评论部分中询问他们。不要(Don)忘记告诉我们对您有用的方法！
Fix This Item Is Temporarily Unavailable Error
Reinstalling the operating system helps to fix several issues in any device. Thеse issues may range from hardware identification errors to software-related problems. Keeping your macOS updated is the most imрortаnt factor to ensure data security and deνіce performance. Moreover, macOS updates also improve the functioning of all the applications such that a user gets a seamless experience. However, many Mac users reported software issues pertaining to installation or rеinstallation of macOS. They often encoυntered an error stating, This Item Is Temporarily Unavailable. Please Try Again Later. Hence, we have taken it upon ourselves to help you fix this error by compiling a list of troubleshooting methods. So, read below to learn more!
How to Fix This Item is Temporarily Unavailable. Please Try Again Later error
Before we begin troubleshooting, let us take a look at the reasons why you might encounter this error. They are as follows:
-
Incorrect Login Credentials: The most probable cause of this error is incorrect AppleID and Login details. If you have recently bought a second-hand MacBook, make sure to log out of your device first, and then, login with your AppleID.
-
Mismatched AppleID: If you own more than one device, there are chances that these devices won’t function because of an AppleID mismatch. You can either create a new account for each or make sure that all of your Apple devices are connected to the same ID.
-
Malware/Virus: Downloading updates from third-party websites sometimes, also downloads viruses on your computer. It can be a possible cause for This Item Is Temporarily Unavailable error on Mac.
Method 1: Sign in to your Apple ID Account
If you want to install or reinstall macOS on your MacBook, you will need an Apple ID. If you do not have one, you will have to create a new one via iCloud.com. You can also open the App Store on your Mac and create or log into Apple ID here. Follow the given steps to log into your Apple account via iCloud:
1. Open the macOS Utilities Folder and click on Get Help Online.
2. You will be redirected to iCloud webpage on Safari. Here, Sign in to your account.
3. Noe, go back to the installation screen to complete the macOS update.
Method 2: Ensure Correct Apple ID
The This Item Is Temporarily Unavailable. Please Try Again Later error mostly, occurs when the installer has been downloaded and the user tries to log in with their Apple ID. In this case, it is very important to make sure that you have entered the correct details.
For instance: If you are installing a new macOS, then make sure to enter the Apple ID with which the previous macOS was installed. If you use a different ID, you will definitely encounter this error.
Also Read: How to Access Your Apple Account
Method 3: Delete System Junk
If you have been using your MacBook for a significant amount of time, then a lot of unwanted and unnecessary system junk must have gotten accumulated. This includes:
- Files and folders which are currently not in use.
- Cookies and cached data.
- Duplicate videos and images.
- Application preferences data.
Cluttered storage tends to slow down the normal speed of your Mac processor. It may also result in frequent freezing and hindered software downloads. As such, it may also cause This Item Is Temporarily Unavailable. Please Try Again Later error.
- Either use third-party applications like CleanMyMac X to get rid of unwanted data and junk, automatically.
- Or, Remove the junk manually as explained below:
1. Select About this Mac in the Apple Menu.
2. Switch to Storage tab, as shown.
3. Here, click on Manage…
4. A list of categories will be displayed. From here, choose the unnecessary files and delete these.
Method 4: Set Correct Date and Time
Although it is preferred to let the device set up date and time automatically, you can set it up manually too. Begin by checking the date and time on the top of the screen. It should be correct according to your Time Zone. Here’s how you can use Terminal to verify if it is correct:
1. Press the Command + Space button on the keyboard. This will launch Spotlight. Here, type Terminal and press Enter to launch it.
Alternatively, open Terminal from the Mac Utility Folder, as illustrated below.
2. The Terminal app will open now.
3. Using the Date Command String, enter the date in the following manner: date <monthdatetimeyear>
Note: Make sure to not leave any spaces between the digits. For example, 6 June 2019 at 13:50 is written as date 060613502019 in the Terminal.
4. Now close this window and re-enter your AppleID to resume the previous macOS download. This Item Is Temporarily Unavailable. Please Try Again Later error should not appear anymore.
Also Read: Fix iTunes Keeps Opening By Itself
Method 5: Malware Scan
As explained earlier, reckless downloads from third-party applications and websites may result in malware and bugs, which will continue to cause This Item Is Temporarily Unavailable error on Mac. You can take the following precautions to safeguard your laptop from viruses and malware.
1. Install trusted anti-virus software:
- We suggest you download reputed antivirus programs like Avast and McAfee.
- After installation, run a complete system scan for any bugs or viruses which may be contributing to this error.
2. Modify Security & Privacy Settings:
- Go to Apple Menu > System Preferences, as earlier.
- Select Security & Privacy and click on General.
-
Unlock Preference Pane by clicking on the lock icon from the bottom left corner.
- Choose the source for macOS installation: App Store or App Store & Identified Developers.
Note: App Store option allows you to install any application from Mac App Store. While App Store and Identified Developers option allow installation of apps from App Store as well as registered Identified Developers.
Method 6: Erase Macintosh HD Partition
This is kind of, the last resort. You can erase the partition in the Macintosh HD disk to fix This Item Is Temporarily Unavailable. Please Try Again Later error, as follows:
1. Connect your Mac to a stable internet connection.
2. Restart the device by selecting Restart from the Apple menu.
3. Press and hold the Command + R keys until the macOS Utilities folder appears.
4. Select Disk Utility and press Continue.
5. Choose View > Show All Devices. Then, select Macintosh HD disk.
6. Click on Erase from the top menu.
Note: If this option is greyed out, read Apple Erase an APFS volume support page.
7. Enter the following details:
-
Macintosh HD in Volume Name
-
APFS as choose an APFS format.
8. Select Erase Volume Group or Erase button, as the case may be.
9. Once done, restart your Mac. While it restarts, press-hold the Command + Option + R keys, until you see a spinning globe.
The macOS will now begin its download again. Once it completes, your Mac will restore to Factory settings i.e. to the macOS version that was pre-downloaded during its manufacturing process. You can now update it to the latest version as this technique would have fixed This Item Is Temporarily Unavailable error.
Recommended:
We hope that this guide was able to help you fix This Item Is Temporarily Unavailable error on Mac. If you have any further queries, ask them in the comments section below. Don’t forget to tell us about the method that worked for you!
