Windows 11/10 AppData文件夹包括以下子文件夹 - Roaming、Local和LocalLow。这篇文章解释了它们是什么以及它们的功能。
几乎您在 Windows 11/10 PC 上安装的每个程序都会在AppData 文件(AppData folder)夹中创建自己的文件夹，并将所有相关信息存储在那里。AppData或应用程序(Application)数据是Windows 11/10中的隐藏文件夹，有助于保护用户数据和设置免遭删除和操纵。要访问它，必须在文件夹选项中选择“显示隐藏的文件和文件夹”。
可以直接在Windows 文件资源管理器(Windows File Explorer)中粘贴以下内容，然后按 Enter 键(Enter)将其打开：
C:Users<用户名>AppData
当您打开AppData文件夹时，您将看到三个文件夹：
- 当地的
- 本地低
- 漫游。
如果一个程序想要有一组设置或文件供多个用户使用，那么它应该使用ProgramData 文件夹(ProgramData folder)——但如果它想要为每个用户存储单独的文件夹，程序应该使用AppData文件夹。
让我们看看什么是 Local、LocalLow和Roaming文件夹以及它们的功能。
本地、LocalLow 和漫游文件夹
Microsoft出于以下原因有意创建了这些文件夹中的每一个：
AppData 中的本地文件夹是什么？
Local文件夹主要包含与安装程序相关的文件夹。其中包含的数据 ( %localappdata% ) 无法随您的用户配置文件一起移动，因为它特定于 PC，因此太大而无法与服务器同步。例如，Internet Explorer临时文件存储在Internet 临时文件或Cookies 文件夹下。此外，还有一个Microsoft文件夹，您可以在其中找到Windows活动的历史记录。
AppData 中的 LocalLow 文件夹是什么？
此LocalLow文件夹包含无法移动的数据。此外，它还具有较低级别的访问权限。例如，如果您在受保护或安全模式下运行 Web 浏览器，则应用程序将仅访问LocalLow文件夹中的数据。此外，LocalLow文件夹不会在第二台计算机上创建。因此，访问LocalLow文件夹的任何应用程序都可能失败。
AppData 中的 Roaming 文件夹是什么？
Roaming文件夹是一种可以轻松与服务器同步的文件夹。它的数据可以随着用户的个人资料在 PC 之间移动——就像当你在一个域上时，你可以轻松地登录到任何计算机并访问它的收藏夹、文档等。例如，如果你登录到域上的另一台 PC，您的网络浏览器收藏夹或书签将可用。这是公司中漫游(Roaming)配置文件的主要优势之一。用户配置文件数据（复制到服务器），自定义数据始终可用，无论员工使用任何系统。
我可以删除AppData LocalLow、Roaming或Local文件夹中的所有内容吗？
您可以删除它们，但您可能会丢失您的程序设置。由于它们是受系统保护的文件夹，您可能需要启动到安全模式才能删除它们。
简而言之：
ProgramData文件夹包含非用户特定的全局应用程序数据，并且可供计算机上的所有用户使用。任何全局数据都放在这里。
AppData文件夹包含用户特定的首选项和配置文件配置，并进一步分为三个子文件夹：
- 漫游(Roaming)文件夹包含可以随用户配置文件从计算机移动到计算机的数据
- 本地(Local)文件夹包含无法随您的用户配置文件移动的数据。
- LocalLow文件夹包括低级访问数据，例如。在受保护模式下运行时浏览器的临时文件。
希望这可以帮助。
Local, LocalLow, Roaming folders in in AppData on Windows 11/10
Windows 11/10 AppData folder includes the following sub-folders – Roaming, Local & LocalLow. This post explains what they are and their functions.
Almost every program you install on your Windows 11/10 PC creates its own folder in the AppData folder and stores all its related information there. AppData or Application data is a hidden folder in Windows 11/10 that helps protect user data and settings from deletion and manipulation. To access it, one has to select “Show hidden files and folders” in the folder options.
One can directly paste the following in Windows File Explorer and hit Enter to open it:
C:\Users\<username>\AppData
When you open the AppData folder, you will see three folders:
- Local
- LocalLow
- Roaming.
If a program wants to have a single set of settings or files to be used by multiple users, then it should use the ProgramData folder – but if it wants to store separate folders for each user, programs should use the AppData folder.
Let us see what are Local, LocalLow and Roaming folders and what are their functions.
Local, LocalLow & Roaming folders
Each of these folders has been created by Microsoft intentionally for the following reasons:
- Better performance during log in
- Segregation of application’s data based on the usage level.
What is Local folder in AppData?
The Local folder mainly contains folders related to installing programs. The data contained in it (%localappdata%) cannot be moved with your user profile since it is specific to a PC and therefore too large to sync with a server. For example, Internet Explorer temporary files are stored under Temporary Internet files or the Cookies folder. Also, there is a folder of Microsoft where you can find the history of Windows activities.
What is LocalLow folder in AppData?
This LocalLow folder contains data that can’t move. Besides, it also has a lower level of access. For example, if you’re running a web browser in a protected or safe mode, the app will only access data from the LocalLow folder. Moreover, the LocalLow folder is not created on the second computer. Therefore, any applications that access the LocalLow folder may fail.
What is Roaming folder in AppData?
The Roaming folder is a type of folder that can be readily synchronized with a server. Its data can move with user’s profile from PC to PC — like when you’re on a domain you can easily log into any computer and access its favorites, documents, etc. For instance, if you sign into a different PC on a domain, your web browser favorites or bookmarks will be available. This is one of the main advantages of Roaming profile in a company. The user profile data (copy to the server), the custom data is always available regardless of any system the employee uses.
Can I delete everything in AppData LocalLow, Roaming or Local folder?
You can delete them but you may lose your program settings. Since they are system-protected folders, you may need to boot into safe mode to delete them.
In short:
ProgramData folder contains global application data that is not user-specific and is available to all users on the computer. Any global data is put in here.
AppData folder contains user-specific preferences and profile configurations and is further divided into three subfolders:
- Roaming folder contains data that can move with the user profile from a computer to a computer
- Local folder contains data that cannot move with your user profile.
- LocalLow folder includes low-level access data, eg. temporary files of your browser when running in a protected mode.
Hope this helps.
