当您在干净格式化的磁盘上安装Windows 11/10或Windows 8/7时，它首先会在硬盘开头的磁盘上创建一个分区。此分区称为系统保留分区^{(System Reserved Partition)}。之后，它使用余额未分配的磁盘空间来创建您的系统驱动器并安装操作系统。

当您打开计算机^(Computer)文件夹时，您将看不到系统保留分区，因为它没有分配磁盘号。您只会看到System Drive或C Drive。要查看系统保留分区^{(System Reserved Partition)}，您必须打开磁盘管理^{(Disk Management)}。

什么是Windows中的^(Windows)系统保留分区^{(System Reserved Partition)}

系统保留分区^{(System Reserved Partition)}包含启动配置数据库^{(Boot Configuration Database)}、启动管理器代码^{(Boot Manager Code)}、Windows 恢复环境，并为BitLocker可能需要的启动文件保留空间，以防您使用BitLocker 驱动器加密^{(BitLocker Drive Encryption)}功能。

它是在全新安装Windows 10/8/7和Windows Server期间创建的。

如果你想查看这个分区的内容，你必须先给这个分区一个Drive Letter，使用Disk Management。接下来^(Next)打开文件夹^(Folder) 选项^(Options)并允许显示隐藏文件、文件夹和驱动器选项，以及受保护的操作系统文件。完成此操作后，打开文件资源管理器^{(File Explorer)}以查看分区及其包含的文件。您可能会看到 bootmgr、BOOTNXT、BOOTSECT.bak等文件以及Boot、Recovery、System Volume Information、$RECYCLE BIN 等文件夹。

阅读^(Read)：SYSTEM.SAV 文件夹是^{(What is the SYSTEM.SAV folder)}什么？

我可以删除Windows 10中的系统保留分区吗^{(System Reserved Partition)}

在Windows 7上，大小为 100 MB，而在Windows 8上，大小为 350 MB。你需要这个空间吗？我建议您不要删除^{(not delete)}此分区。您可以改为阻止在Windows安装期间创建它。如果您确定不会使用BitLocker，那么您可以继续。

为此，TechNet建议您使用安装程序中的Diskpart 实用^{(Diskpart utility)}程序。

在Windows安装开始时，就在您选择要安装Windows的位置之前，按Shift+F10打开命令提示符。输入diskpart进入Diskpart环境。使用select disk 0 and create partition primary手动创建新分区。使用这个新分区作为安装位置继续安装Windows 。

如果您收到我们无法更新系统保留分区错误，请参阅此帖子。^{(See this post if you receive We couldn’t update the system reserved partition error.)}

What is System Reserved Partition in Windows 11/10

When yoυ install Windows 11/10 or Windows 8/7 on a cleanly formatted disk, it first creates a partition on the disk at the beginning of the hard disk. This partition is called the System Reserved Partition. After that, it uses the balance unallocated disk space to create your system drive and install the operating system.

When you open the Computer folder, you will not see the System Reserved Partition as it is not assigned a disk letter. You will only see the System Drive or the C Drive. To see the System Reserved Partition, you will have to open Disk Management.

What is System Reserved Partition in Windows

The System Reserved Partition holds the Boot Configuration Database, Boot Manager Code, Windows Recovery Environment and reserves space for the startup files which may be required by BitLocker, in case you use the BitLocker Drive Encryption feature.

It is created during a clean, fresh installation of Windows 10/8/7 and Windows Server.

If you wish to view the contents of this partition, you will have to first give this partition a Drive Letter, using Disk Management. Next open Folder Options and allow showing of hidden files, folders, and drives option, as well as protected operating system files. Once you have done this, open your File Explorer to view the partition and the files it contains. You may see files like bootmgr, BOOTNXT, BOOTSECT.bak and folders like Boot, Recovery, System Volume Information, $RECYCLE BIN, etc.

Read: What is the SYSTEM.SAV folder?

Can I delete the System Reserved Partition in Windows 10

On Windows 7, the size is 100 MB whereas, on Windows 8, it is 350 MB. Do you need this space? I would recommend that you not delete this partition. You can instead prevent it from being created during Windows installation. If you are sure that you will not be using BitLocker, then you may go ahead.

To do this, TechNet recommends you use the Diskpart utility from the setup program.

At the beginning of the Windows setup, just before you select the location where you want to install Windows, press Shift+F10 to open a Command Prompt. Type diskpart to enter the Diskpart environment. Use select disk 0 and create partition primary to manually create a new partition. Continue with the Windows installation using this new partition as the setup location.

See this post if you receive We couldn’t update the system reserved partition error.

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