0x80070643 Archives

Winsage

April 24, 2025

Microsoft fixes bug causing incorrect 0x80070643 WinRE errors

Microsoft has resolved a known issue causing 0x80070643 installation failure errors during the deployment of the April 2025 Windows Recovery Environment (WinRE) updates. This issue affected the KB5057588 update for Windows Server 2022 and the KB5057589 update for Windows 10, versions 22H2 and 21H2. The error message was misleading, as it did not reflect the actual status of the update or the device's performance. The error typically occurred when a device attempted to install the WinRE update while another update was pending a reboot. Microsoft confirmed that users will no longer see the incorrect error message after installing the affected updates. Additionally, in August of the previous year, Microsoft retired the January 2024 Windows security updates that also triggered 0x80070643 errors during WinRE updates. During that time, fraudulent IT support websites promoted malicious PowerShell "fixes" for these errors, leading to malware infections among users.

Winsage

April 15, 2025

Windows Update fails successfully, says Microsoft

The April 2025 Windows Recovery Environment update, identified as KB5057589, has caused confusion among Windows 10 users due to an error message (0x80070643 – ERRORINSTALLFAILURE) encountered during installation. Microsoft clarified that this error is a nuisance and does not affect the update or device functionality. The update enhances recovery features for devices facing booting issues and is delivered through Windows Update. Users may see the error if the update is installed while another update is pending a reboot, but the update typically installs successfully after a restart. Microsoft is working on a resolution to address user concerns.

Winsage

April 15, 2025

This Windows 10 bug looks serious – but apparently it’s lying

A new bug has emerged on Windows 10 machines following the KB5057589 update, which began rolling out on April 8 and focuses on enhancing the Windows Recovery Environment (WinRE). Users have reported encountering the 0x80070643 error during installation, indicating a potential failure of a crucial data protection tool. Microsoft advises users to remain calm, suggesting that the error message is largely inaccurate and often resolves after a reboot. While some issues related to the update have been fixed, Microsoft is actively working on further solutions. Windows Update may continue to display the update as failed, but this should clear after the next daily scan. Windows 10 will reach its end-of-support date on October 14, 2025, after which Microsoft will stop providing security patches and support unless users opt for the Extended Security Updates program. Meanwhile, Windows 11 is receiving regular updates and new features, including enhancements to the Start menu and the introduction of passwordless sign-in options.

Winsage

April 15, 2025

Microsoft tells Windows users to ignore 0x80070643 WinRE errors

Microsoft has acknowledged that some users may experience installation failures with error code 0x80070643 when deploying the April 2025 Windows Recovery Environment (WinRE) updates, specifically affecting the KB5057589 update for Windows 10 versions 22H2 and 21H2, and the KB5057588 update for Windows Server 2022. The company stated that this error is misleading and does not affect device functionality, as the WinRE update is typically applied successfully after a device restart. Users may see a failure indication in Windows Update, but this will be resolved after the next daily scan and restart. Microsoft is working on a resolution for this issue, which follows a similar situation from August 2024. Additionally, fraudulent IT support websites have been identified promoting malicious PowerShell "fixes" for these errors.

Winsage

April 15, 2025

Getting a weird Windows 10 error recently? Just ignore it, says Microsoft

Microsoft has addressed concerns regarding error code 0x80070643, which may occur after installing the April 2025 Windows Recovery Environment update. This error is linked to the update process and appears when the WinRE update attempts to install while another update is pending a reboot. Microsoft clarifies that the error is misleading and does not indicate a failure in the update process; the WinRE update is typically applied successfully after a device restart. Users may see the update as failed until the next daily scan, at which point the failure message is cleared. Microsoft is working on a solution for this error and reassures users that there is no immediate cause for concern.

Winsage

April 15, 2025

Microsoft Warns Millions Of Windows Users—Do Not Update Your PC

Microsoft's April updates have led to user concerns, including the appearance of an empty folder named “inetpub,” which is linked to a security patch for vulnerability CVE-2025-21204. Users are also facing error code 0x80070643 during the installation of the Windows Recovery Environment (WinRE) update, which may give the impression of a failed update, but Microsoft states that the update is usually applied successfully after a restart. Some users have reported issues with partition size on the Recovery disk, even with sufficient storage available. Microsoft advises users not to delete the “inetpub” folder and to refrain from further updates immediately after applying the April updates, suggesting that a restart may resolve issues. Additionally, Microsoft emphasizes the importance of upgrading from Windows 10 before its end of support on October 14, 2025.

Winsage

November 17, 2024

Windows 10 KB5048239 causes 0x80070643 error but Microsoft already has an official fix

Microsoft released its November 2024 updates, including dynamic updates for Windows 11 and a rare set for Windows 10. The Recovery update KB5048239 has been causing installation failures with the error "0x80070643." Users have reported similar issues with previous updates KB5034440 and KB5034441. The installation failures are attributed to insufficient space in the Windows Recovery partition, which requires a minimum of 250 MB for successful installation. Microsoft has provided guidance for users to resize their recovery partition to ensure eligibility for the update.

Winsage

August 14, 2024

Microsoft retires Windows updates causing 0x80070643 errors

Microsoft has retired several updates released during the January 2024 Patch Tuesday due to installation errors linked to the 0x80070643 error when installing Windows Recovery Environment (WinRE) updates. The updates affected were KB5034441 for Windows 10, KB5034440 for Windows 11, and KB5034439 for Windows Server 2022, which aimed to address a critical vulnerability (CVE-2024-20666) related to BitLocker encryption. The error was caused by insufficient space in the WinRE partition, requiring an additional 250 MB of free space. Microsoft announced that users must manually expand their WinRE partitions to resolve the errors, as an automated fix will not be provided. New replacement updates—KB5042320, KB5042321, and KB5042322—have been introduced, which will only be available to users with adequate free space in their WinRE partitions. Microsoft offers guidance for users to either follow manual steps or use a script to resize their partitions to ensure they can install the new updates.

Winsage

August 14, 2024

Microsoft kills unfixable KB5034440/KB5034441 updates, replaces with KB5042321/KB5042320

Microsoft released its monthly Patch Tuesday updates, including KB5041580, KB5041578, KB5041773, and KB5041782 for Windows 10, and KB5041585, KB5041592, and KB5041571 for Windows 11 across versions 23H2, 22H2, 21H2, and the new 24H2. The company retired the problematic KB5034441 and KB5034440 WinRE updates, which caused the "0x80070643 - ERRORINSTALLFAILURE" error due to insufficient space in recovery partitions. These updates were initially meant to address a BitLocker Secure Boot bypass vulnerability (CVE-2024-20666). Microsoft acknowledged that an automatic fix for the installation failure would not be provided, leaving manual workarounds as the solution. The retired updates have been replaced with new support documents KB5042321 and KB5042320, which clarify that the update requires 250 MB of free space in the recovery partition to install successfully. Users are advised to resize their recovery partitions if necessary.

Winsage

July 15, 2024

Can’t update Windows due to error code 0x80070643? Here’s what to do

A Windows update bug is causing installation issues for some users when trying to install specific updates for Windows 10 and Windows 11, resulting in error codes 0x80070643 or 0x80070643 - ERRORINSTALLFAILURE. The problem is caused by the Windows recovery partition not being large enough to complete the update, leading to a failure in the update to WinRE. Microsoft has provided self-help instructions to address this issue, including checking the WinRE version and adjusting the size of the recovery partition if necessary.