5 Methods for Update KB5035942 Fails to Install on Windows 11

Windows 11 Update KB5035942 Solutions for Installation Failed

On March 26, 2024, Microsoft released an optional cumulative (preview) update for Windows 11 22H2/23H2 version. However, some users reported that they had an issue with "preview update KB5035942 failed to install". This article will provide some solutions.

Microsoft released a preview update for Windows 11 22H2 and 23H2 versions on March 26, 2024. This update is an optional update and requires manual start of download and installation by default.

The KB5035942 update brings significant improvements to Windows 11, including new Windows Copilot skills and plug-ins for improved virtual assistant capabilities; AI features in Windows lock screen interface and Clipchamp and photo applications enhance user engagement and content creation; smarter Snap recommendations for improved multitasking efficiency; new Windows 365 startup for enterprise users; and improved voice access to enhance accessibility. You can go to Settings > Windows Update > Check for updates to download and install KB5035942.

However, many users reported that they had an issue with "KB5035942 installation failed". Next, let's see how to solve this problem.

Method 1: Troubleshooting for running Windows updates

To resolve the issue of "KB5035942 cannot be installed", you can run Windows Update troubleshooter. The specific steps are as follows:

1. Press the Windows I key to open the settings window, then select the system from the vertical menu on the left, and then click Troubleshoot in the menu on the right.
2. Click Other Troubleshooting , and then click Run next to the Windows Update section.
3. This troubleshooter will now scan for issues related to Windows Update components. If you find any fixable issues, click Apply this fix and follow the on-screen instructions to complete the fix.

Method 2: Run disk cleaning

Disk Cleanup can easily delete unnecessary files on your computer and save space. You can also solve the problem of "KB5035942 installation failed" through disk cleaning. The steps are as follows:

1. Enter Disk Cleanup in the search box and select the first option.
2. Select the drive where Windows is installed and click OK to continue.
3. Click the Clean System Files option, and then click OK to start cleaning.

Method 3: Reset Windows Update Cache

If the preview update KB5035942 installation fails, it may be that there is a problem with the update file, or the file is not completely cleared for download or is corrupted. You can reset the Windows update cache.

1. Enter a command prompt in the search menu. Then right-click it to open it with the choice to run as administrator .
2. Enter the following commands in turn:

• net stop wuauserv
• net stop cryptSvc
• net stop bits
• net stop msserver
• Ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
• Ren C:\Windows\System32\catroot2 Catroot2.old

3. Next, run the following commands in turn.

• net start wuauserv
• net start cryptSvc
• net start bits
• net start msserver

Method 4: Manually install KB5035942

You can also download and install KB5035942 through Microsoft Update Catalog.

1. Go to the Windows 11 KB5035942 download page.
2. Select the download link corresponding to your Windows 11.
3. After downloading the software package, double-click the exe file to install it.

Method 5: Perform on-site upgrade

In-place upgrade is a feature provided by Windows 10 or 11 that allows the installation of the latest version while keeping existing applications and personal data secure. So when you can't install KB5035942 in Windows 11, you should choose this method.

Before you start the installation, it is best to back up all the important files on your system disk. Additionally, installing a preview update may cause system instability, so it is better for you to back up your system in advance. To do this, you can try using MiniTool ShadowMaker Free. It can complete backup tasks quickly and supports different Windows operating systems.

Conclusion

If you are experiencing the issue of "KB5035942 installation failed" on Windows 11, try the above solution to easily resolve this issue. It is recommended that you use Minitool ShadowMaker to back up important data or systems to better protect your computer.

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