Fix Some Update Files aren’t signed correctly

You may face this error while trying to update your Windows 10 to latest build. The error code associated with this error is (0x800b0109), indicating that the Update you are trying to download or install is either corrupted or damaged. The update is not corrupted or damaged from Microsoft servers but on your PC.

The error message says “Some update files aren’t signed correctly. Error code: (0x800b0109)” which means you won’t be able to update your Windows because of this error. So without wasting any time let’s see how to actually Fix Some Update Files aren’t signed correctly issue while updating Windows with the help of below-listed troubleshooting guide.

Fix Some Update Files aren’t signed correctly

确保创建一个还原点，以防出现问题。

方法 1：运行 Windows 更新疑难解答

1.在控制面板中搜索 故障排除 在右上角的搜索栏中，然后单击 故障排除。

2. 接下来，从左侧窗口窗格中选择 查看全部。

3. 然后从“解决计算机问题”列表中选择 Windows更新。

4. 按照屏幕上的说明进行操作并运行 Windows 更新故障排除。

5. 重新启动电脑，看看是否可以 Fix Some Update Files aren’t signed correctly while updating Windows 10.

Method 2: Run SFC

1。 打开 命令提示符。用户可以通过搜索来执行此步骤 'Cmd的' 然后按Enter键。

2. 现在在 cmd 中输入以下内容并按 Enter 键：

Sfc /scannow sfc /scannow /offbootdir=c: /offwindir=c:windows （如果上述失败，请尝试这个）

3. 等待上述过程完成，完成后重新启动电脑。

方法 3：运行 DISM (部署映像服务和管理）

1。 打开 命令提示符。用户可以通过搜索来执行此步骤 'Cmd的' 然后按Enter键。

2. 在 cmd 中键入以下命令，并在每一条命令后按 Enter 键：

Dism /Online /Cleanup-Image /CheckHealth Dism /Online /Cleanup-Image /ScanHealth Dism /Online /Cleanup-Image /RestoreHealth

3. 运行 DISM 命令并等待其完成。

4. 如果上述命令不起作用，请尝试以下命令：

Dism /Image:C:offline /Cleanup-Image /RestoreHealth /Source:c:testmountwindows Dism /Online /Cleanup-Image /RestoreHealth /Source:c:testmountwindows /LimitAccess

请注意： 将 C:RepairSourceWindows 替换为您的修复源（Windows 安装或恢复光盘）。

5. 重新启动您的电脑以保存更改并查看是否能够 Fix Some Update Files aren’t signed correctly while trying to update Windows 10, 如果没有，则继续执行下一个方法。

方法4：注册表修复

Backup Registry before moving forward, just in case something goes wrong you could easily restore the registry.

1. 按 Windows 键 + R，然后输入 注册表编辑器 并按 Enter 打开注册表编辑器。

2. 导航到以下注册表项：

HKEY_LOCAL_MACHINESOFTWREPoliciesMicrosoftWindowsWindowsUpdate

3。 右键单击 WindowsUpdate key 并选择 删除。

4. Close Registry Editor and again press Windows Key + R then type SERVICES.MSC 并按Enter键。

5。 找 Windows Update and Background Intelligent Transfer Service in the list. Then right-click on each of them and select 重新开始。

6. This would restart Windows Update and Background Intelligent Transfer Service.

7. Again try to update your Windows, if it still fails, then reboot your PC and update Windows.

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这样你就成功了 Fix Some Update Files aren’t signed correctly while updating Windows 10 to latest build but if you still have any questions regarding this post feel free to ask them in the comment’s section.