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

確保建立一個還原點，以防出現問題。

方法 1：執行 Windows 更新疑難排解

1. In control panel search 疑難排除 在右上角的搜尋欄中，然後按一下 故障排除。

2.接下來，從左側窗口中，窗格選擇 查看全部。

3. 然後從排除計算機問題列表中選擇 Windows更新。

4. Follow on-screen instructions and let the Windows Update Troubleshoot run.

5.重啟你的電腦，看看你能不能 Fix Some Update Files aren’t signed correctly while updating Windows 10.

Method 2: Run SFC

1。 打開 命令提示符. 用戶可以通過搜索來執行此步驟 'cmd' 然後按Enter鍵。

2.現在在cmd中輸入以下內容並回車：

Sfc /scannow sfc /scannow /offbootdir=c: /offwindir=c:windows （如果以上失敗，那麼試試這個）

3.等待上述過程完成，完成後，重新啟動PC。

方法 3：運行 DISM (部署映像服務和管理）

1。 打開 命令提示符. 用戶可以通過搜索來執行此步驟 'cmd' 然後按Enter鍵。

2. 在 cmd 中鍵入以下命令，並在每個命令後按 Enter 鍵：

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

3. 讓 DISM 命令運行並等待它完成。

4. 如果上述命令不起作用，請嘗試以下操作：

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

注意： 將 C:RepairSourceWindows 替換為您的修復源（Windows 安裝或恢復光盤）。

5. 重新啟動您的電腦以儲存變更並查看是否能夠 Fix Some Update Files aren’t signed correctly while trying to update Windows 10, 如果沒有，則繼續下一個方法。

方法 4：註冊表修復

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

1. 按 Windows 鍵 + R 然後輸入 註冊表編輯器 並按 Enter 打開註冊表編輯器。

2. 導覽至以下註冊表​​項：

HKEY_LOCAL_MACHINESOFTWREPoliciesMicrosoftWindowsWindowsUpdate

3。 右鍵單擊 WindowsUpdate key 並選擇 刪除。

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

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

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.

推薦：

這樣你就成功了 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.