If the Windows 10 Upgrade Assistant becomes stuck or unresponsive at various percentages: 0%, 32%, 62%, 87%, 99%, please wait at least 4 to 7 hours. If you are updating through Windows Update, when the download reaches 99% disconnect from the Internet LAN
(Ethernet) or Wi-Fi then proceed with the installation.
If setup does not progress, close the wizard then restart your computer. Follow the instructions to upgrade manually using the Media Creation Tool or the Windows 10 ISO file.
If setup did not complete on time and you experience problems activating. Contact Chat support after the Windows 10 installation is complete. Click Start > All Apps > Contact Support. Explain your situation to the chat agent.