Why does Windows 10 always start on the second try?

Question

Windows

After updating to Windows 10, I noticed a strange feature - after a long idle time of the computer (for example, overnight), it turns on until it loads Windows and completely goes out. After turning it back on, the download is normal and without errors, the reboot also goes well. Along with the update on Windows 10, I installed Linux and the Grub bootloader. In what direction to look for a problem?

Answer 1

The direction of the search is probably towards the debug mode and log views, in order to search for the last actions before rebooting at the first (unsuccessful) start. Unless, of course, this tool has not been removed from Win10). You need to try to boot for the first time, the system will go to the second restart, and then boot from the LiveCD and look at the logs...