How can I trace a boot from power on to login?

All of a sudden my SSD laptop went from 8 second boot times to 16 seconds for no reason at all. It is hanging for quite some time before the login screen so I want to see what is going on there. Is there a way to trace the boot to see where it is hanging?

I believe windows do some self test/maintenances on it's own during boot, my windows sometimes boot in 30 sec sometimes in 45 sec on HDD.

Some goes to my gaming laptop SSD 10~15 sec for no reason.

Autoruns is a very useful utility to check or disable which programs / tasks / services run at boot.

Thank you everyone for all the help and suggestions. I've done as much as I could and decided to reinstall win10 and all is good. I'm a linux user mostly and just never have any problems with it, but I always find there is always something that will waist my time in windows lol. After I reinstalled windows, I tested boot times after every program I added just to make sure they are not delaying something and so far I'm back to 8 sec cold boot to desktop.

I always have windows updates turned off, but I remember I forgot to turn of Lenovo updates and it could have installed something that slowed things down.

win10today said:

Thank you everyone for all the help and suggestions. I've done as much as I could and decided to reinstall win10 and all is good. I'm a linux user mostly and just never have any problems with it, but I always find there is always something that will waist my time in windows lol. After I reinstalled windows, I tested boot times after every program I added just to make sure they are not delaying something and so far I'm back to 8 sec cold boot to desktop.

I always have windows updates turned off, but I remember I forgot to turn of Lenovo updates and it could have installed something that slowed things down.

Well glad you solved it out the hard way :)
But don't over think it, sooner or later, it will get slower by it self, it's just how Windows act after XP.
Make a restore point every once in a while to save you the time reinstalling windows in case. could help.

black said:

Well glad you solved it out the hard way :)
But don't over think it, sooner or later, it will get slower by it self, it's just how Windows act after XP.
Make a restore point every once in a while to save you the time reinstalling windows in case. could help.

Great idea thanks. I almost forgot to create a restore point. Is there any trick to make sure the restore point I want never gets deleted or replaced?