How to Fix 0x80070003 Error – Trying to Update Windows 10 to 1703 Error Code 0x80070003-0x20009

Trying to update Windows 10 to version 1703 (Anniversary) is causing an error code of 0x80070003-0x20009. This issue affects users who have downloaded the ISO from MSDN and are attempting to update their Anniversary (1607, Enterprise 64-bit) version of Windows 10. The frustrating part of this problem is that numerous online solutions and fixes for similar error codes related to Windows Update and Windows Store have been tried without success.

Given the complexity of the issue and the user's heavily customized system, a fresh install is not a practical solution. Instead, we will focus on troubleshooting steps to resolve the specific error code 0x80070003-0x20009.

⚠️ Common Causes

• The primary cause of this error is related to the SAFE_OS phase and PREPARE_ROLLBACK operation during the Windows update process. This phase is typically used for system restoration and troubleshooting, but in this case, it's causing an issue with the Windows installation.
• An alternative reason could be related to the user's customized system configuration, including EFI System Partitions and secondary Windows installations, which may be interfering with the update process.

🛠️ Step-by-Step Verified Fixes

✨ Wrapping Up

To resolve the error code 0x80070003-0x20009, try re-running the DISM.exe and sfc.exe commands, followed by resetting Windows Update components. If these steps do not work, it may be necessary to investigate further into the user's customized system configuration and address any potential conflicts with the update process.