@Syncadrome027
Hi,
The upgrade time depends on the age of your device and how it’s configured. Most devices will take about an hour to upgrade once the download is complete. While older devices could take longer, some newer, high performance devices may upgrade faster.
I would suggest you to Reset Windows update components and place your computer in Clean boot state and try installing the update.
For your reference:
https://support.microsoft.com/en-us/windows/upgrade-to-windows-10-faq-cce52341-7943-594e-72ce-e1cf00382445
Hope above information can help you.
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