A week or two ago, I saw an icon appear on my desktop labeled "Windows 10 Upgrade Assistant". At the same time, I received a windows prompt asking me to upgrade "to the latest version of Windows 10". I had switched to windows 10 64-bit from windows 8.1 64-bit around 9-10 months ago, and up until now I had received my updates regularly without any prompts. I decided to let the update window install the update and restart my computer. However, when my computer restarted to apply the update, the computer shut down. When I turned it on again, it said the update failed and it was restoring to a older version of windows 10. I tried the same process three more times to the same result. If anybody could help me out, I'd really appreciate it.