While some users have found it to be an issue with the antivirus software and disabling antivirus software fixed their issue, for some users simply by downloading installation media manually and doing the upgrade worked. Here in this article, we will see methods that helped fix the issue                                  .

Method 1: Download Installation Media Manually

In some cases where an automatic update does not work, we can try downloading the Installation Media Manually and running the upgrade. Follow Below steps to run the upgrade The tool will start downloading Windows 10. Once the download is complete, it will walk you through the update process This will complete the manual upgrade. During the setup process, your system will restart a few times

Method 2: Disabling Antivirus Software

There are several users who were getting error code 0x800700c1 while doing Windows 10 Anniversary update, were able to complete the update by disabling Antivirus software on their computers. For some users it was Trend  Micro security, for some it was Sophos Antivirus and for some, it was comodo Internet Security. Turning off these Antivirus software helped them to complete the upgrade process. Follow below steps to disable Antivirus software.

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