Windows 10: Boot time very slow with SSD

I have Windows 10 with the latest updates, my hardware is:
i5-6600k running at 4.4GHZ and 1.3v
Samsung 850 EVO 250GB SSD
8GB RAM
Z170-HD3
RX 480 4GB
I'm on windows 10 1703
My boot time has recently been extremely slow (almost 2 minutes)
Interestingly Windows boot (The windows logo and loading screen) takes the vast majority of the time (84 seconds out of 110), and that time is very consistent every boot (always in the 83-84 seconds range)

This is with fast boot enabled/disabled.I tried to enable/disable enableULPS in the registry but still had the same issue.
Any ideas what to do?

:)

 

Very slow boot time with Windows 10 Pro on SSD

POSSIBLE SOLUTION: WINDOWS 10 UPGRADE DELETES OVER-PROVISIONING ON SSD!

After upgrading from Windows 8.1 to Windows 10 I experienced the same slow boot issues. This wasn't anything to do with what was happening IN Windows -- the delay was happening before Windows started, and continued after I rolled back to 8.1 (my Lenovo X220
was not fully compatible). I realized that it must be something that had changed on my SSD and I finally found out what it is:

The Windows 10 upgrade process deleted the over-provisioning space on my SSDs!! I had set up 10% for over-provisioning with Samsung Magician for both my Samsung SSDs and after the upgrade it was gone from both drives. After re-applying 10%
over-provisioning with Samsung Magician everything returned to normal after around 24 hours. It wasn't immediate, probably because the drive firmware needed time to get its references set up again.

If you have a Samsung SSD you just need to reactivate over-provisioning with the Samsung Magician utility. If you have a different brand you will need to re-activate it using the method you used to set it up in the first place. Make sure you have a backup,
because any changes to hard disk structure are potentially dangerous.

Info: Over-provisioning space is free space that an SSD needs to use to replace bad sectors. When sectors go bad they are marked as bad and the firmware uses sectors from the over-provisioning space instead.

 

Very slow boot time with Windows 10 Pro on SSD

Windows Update pushed an update labelled Advanced Micro Devices, Inc. driver update for AMD Radeon 6600M and 6700M Series and again my laptop was taking 80 seconds to book. So again I disabled ULPS to solve the problem. However this time I have to modify
both EnableUlps and EnableUlps_NA keys in the registry. I'm glad I have a solution to this problem but it looks like each time the display adapter driver is updated I'll have to follow the same procedure.

 

Welcome to the forum. In taskmanager startup what does it show as high impact your best bet is to find out whats taking the timehttps://helgeklein.com/blog/2013/07/analyzing-a-slow-boot-with-windows-performance-recorder-analyzer/

 

Hi. It's not a startup application that's causing this. Applications start up after you login, the delay I'm talking about happens in the loading screen even before the login screen.
See here:



It takes just 13 seconds for startup programs to run. But 85 seconds in the loading screen.

 

what did the test show it may be a service

 

Again, that test is concerned with startup time after login, my problem is slow boot before login. They're unrelated.

 

This may help:
You may need to do some boot time analysis.
E.g.
Very slow boot on Win10 with SSD after creators upadte - Page 2 - Windows 10 Forums

 

Done. What should I look for?
UI Delays? Boot phases?
Weirdly, it shows the session init phase taking just 7 seconds, while it actually takes 85-86.
Edit: Here's a screenshot of its results:



At the bottom, it says the duration is 146 seconds, but all the phases together are less than 40 seconds!

 

the 85s of delay, you are talking about, are not reflected in the Winlogon init phase. in the graph I only see 11s !

with which tool did you mesure your boot time that shows 85s ?

 

I used BootRacer and also timed it manually, the 85 seconds measurement was correct.
Anyway, I fixed the problem by doing a repair install of Windows 10, while keeping my apps and files. Now it's back to normal and pre-login time is reduced to ~10s.

 

Hi, it's possible you may get a driver update that creates the same problem- but let's hope not.