近日，微软发布了针对Windows 10系统的安全更新KB5034441，旨在修复一个可以绕过BitLocker加密的漏洞。然而，许多用户在安装过程中遇到了0x80070643错误，导致安装失败。据国外科技媒体BleepingComputer测试，使用微软提供的最新ISO全新安装Windows 10，创建了一个522MB的WinRE分区，由于新安装的分区过小，无法安装KB5034441安全更新，并显示0x80070643错误。
微软表示，此问题主要是因为恢复分区大小不足以支持更新所致。目前，唯一的解决方案是创建一个更大的Windows恢复分区，以便有足够的空间安装安全更新。为此，用户需要将C盘分区缩小250MB，并使用新的未分配空间创建更大的恢复分区。
针对此问题，微软发布了一份支持公告，介绍了如何使用reagentc.exe和diskpart.exe命令行工具创建新的恢复分区。Reagentc.exe是管理Windows恢复环境的命令行工具，而diskpart.exe则是管理设备磁盘分区和卷的命令行工具。
中文翻译：
News content:
Recently, Microsoft released a security update KB5034441 for the Windows 10 system, aiming to fix a vulnerability that can bypass BitLocker encryption. However, many users encountered the error 0x80070643 during the installation process, causing the installation to fail. According to the testing of foreign tech media BleepingComputer, a new installation of Windows 10 with the latest Microsoft ISO created a 522MB WinRE partition. Due to the small size of the newly installed partition, the KB5034441 security update couldn’t be installed and displayed the error 0x80070643.
Microsoft stated that this issue is mainly caused by the insufficient size of the recovery partition. Currently, the only solution is to create a larger Windows recovery partition to accommodate the security update. To do this, users need to shrink the C partition by 250MB and use the newly unallocated space to create a larger recovery partition.
In response to this problem, Microsoft released a support announcement detailing how to create a new recovery partition using command-line tools reagentc.exe and diskpart.exe. Reagentc.exe is a command-line tool for managing the Windows recovery environment, while diskpart.exe is a command-line tool for managing device disk partitions and volumes.
【来源】https://www.ithome.com/0/744/662.htm
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