@Jaimin73
Given the date of your post, I would have expected someone to respond to it before this -- but since that has not happened, I will take a shot at it ...
Sounds like you turned off the PC before it was able to complete a Windows Update cycle -- and this basically leaves the PC in a corrupted state, from which it can not recover on its own.
First thing you need to do is see if you can restart in Safe mode -- by doing these steps: https://www.tenforums.com/tutorials/2304-boot-into-safe-mode-windows-10-a.html
If you don't know how to start using Advanced Startup Options, then read this: https://www.tenforums.com/tutorials/2294-boot-advanced-startup-options-windows-10-a.html
Then, follow these steps to reset Windows Update: https://www.tenforums.com/tutorials/24742-reset-windows-update-windows-10-a.html
If these work, when you finally reboot, you should then be able to login to a working Windows desktop.
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