Issue:

Windows is not loading and stuck at loading icon or PC reboots at windows loading screen

Resolution:

Fix #1
Step 1:
On the login screen click on Power icon on the right corner

Step 2:
Press Shift Key and press hold and then click Restart (This will restart the system in recovery mode)

Step 3:
In the recovery bluescreen options you’ll need to click (or tap) the Troubleshoot option

Step 4:
Click Advanced Options

Step 5:
Then click on Startup Repair

Alternate Solution Link:

https://answers.microsoft.com/en-us/windows/forum/all/windows-10-stuck-at-loading-screen-infinite/e3128287-d980-4383-8f95-18b6a6adfb18