What is the make and model of your computer?
Have you checked the manufacturers website to determine compatibility?
Check
this List to Determine if Your Computer is Compatible with the Windows 10 Creators Update or Anniversary Update or Not
You should also follow Microsoft's advisory and upgrade only when offered through Windows Update:
Microsoft Slows Rollout of Windows 10 Creators Update based on Customer Feedback
If must upgrade, perform the following tasks:
12 Things You Should Do Before Installing Windows 10 Creators Update (Version 1703)
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.
How
to download official Windows 10 ISO files
How
to: upgrade from previous versions of Windows using Windows 10 ISO file
