Slow booting up - Windows stuck on black screen for several seconds


  1. jaaycoop
    Posts : 2
    Windows 10 20H2
       New #1

    Slow booting up - Windows stuck on black screen for several seconds


    Hello everyone!
    I'm facing a problem with my Asus S400C running Windows 10 (currently v. 20H2).

    I'll describe the whole situation from the beggining.
    Almost two years ago, I upgraded my notebook by installing a new SSD. I performed a clean installation of Windows 10 Home. Everything had been ultra-fast, untill some update ruined everything (march-may 2020). From that time, my laptop is booting up very slowly. After loading screen with Windows 10 logo, and before login screen, Windows is stuck at black screen with no cursor. That screen lasts for over 30 seconds.
    What I have done so far:
    - clean installation of Windows 10 (yesterday) - problem was solved maybe during first boot
    - safe boot - no change
    - disable all services except these from Microsoft and then restart - no change
    - disable windows error reporting service - no change

    ntbtlog shows that there are some drivers that are not loaded during boot:
    BOOTLOG_NOT_LOADED \SystemRoot\System32\drivers\dxgkrnl.sys (several times)
    BOOTLOG_NOT_LOADED \SystemRoot\System32\drivers\CAD.sys
    BOOTLOG_NOT_LOADED \SystemRoot\System32\DRIVERS\NDProxy.sys (few times)
    BOOTLOG_NOT_LOADED \SystemRoot\system32\drivers\wd\WdFilter.sys

    Maybe my problem is somehow connected with these drivers?

    I'm exhausted. My notebook is booting up longer than when I had HDD.

    Any ideas?
      My Computer
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  3. Samuria
    Posts : 8,111
    windows 10
       New #2

    Welcome to the forum. First job goto taskmanager startup how long in the bios and any startup showing a long time
      My Computer
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  4. jaaycoop
    Posts : 2
    Windows 10 20H2
    Thread Starter
       New #3

    Samuria said:
    Welcome to the forum. First job goto taskmanager startup how long in the bios and any startup showing a long time
    Taskmanager shows:
    - BIOS - 6.6 sec
    - Autostart apps have no significant impact on booting up.
      My Computer
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  6. zinou
    Posts : 898
    windows 10
       New #4

    Hi @jaaycoop and welcome to tenforums

    Usually boot delays at this stage are the result of bad, inappropriate or outdated drivers.
    Make sure you've installed the latest drivers for your computer model. check the manufacturer website.

    If all your drivers are up to date and the problem persist, you can record a boot trace using Windows Performance Toolkit.
    you can find many threads on the forums about that subject.

    You can also find here a step by step tutorial on how to record a boot trace.

    The boot trace can show us more details and hopefully the root cause of this boot delay.
      My Computer
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