Question Windows 10 Long Boot Time (20 minutes) Black Screen With Spinning Circle

[hamster22]

Since a week ago after a Windows Update my boot time increased to 20 minutes, it stalls at a black screen with a spinning circle and then eventually gets to the login screen.

When I do log in Windows Firewall is off by default, start menu is laggy, I cannot type in Cortana, and my network is not functioning fully.

I've tried taking out the graphics card and hard drives and it doesn't have any effect, it's definitely a Windows/software problem, probably conflicting with a driver. In my latest effort I did a clean Windows 10 install, rushed to disable Windows Update, and it worked for a day but after a restart the issue popped up again. I can't find clear information if this is a recent issue with Windows Update, I don't see many posts specifically having my issues.

Specs:

i5 6600k
32GB Ram
240GB SSD
Geforce 1070
Windows 10 Pro Version 1809

*edit I created a second user, and the issues are the same across the board, can't type in Cortana, long load times for the login screen etc. Strange behavior overall.

*edit 2: scroll down to post #20 it might be the best solution.

 

[awhquiss]

Are there any updates on this please?

We have a 350 user site having this issue on about 3% of users laptops. Give them a new imaged Dell 7490 or HP Elitebook 840 G5 and only works for 2 weeks at max 3 weeks and then they are broke again. C:\Windows\Serviceprofiles\localservice\NTUSER.DAT will be 400mb or larger and the laptop will take over 10 minutes to start. Get the branding logo on boot and then just a black screen for over 10 minutes. Looking in event logs you can see nsi and then multiple other services failing to start. Once it finally boots Network, Video, Sound and keyboard within windows menu all broken.

Have followed other articles and booted from win 10 media and renamed the localservice folder to localservice.old. The Laptops will then boot again quickly but wireless still doesn't work. It states it connects but does not get internet access.

Trying to find a tool that would show what part of the ntuser.dat file is being filled so quickly to help diagnose what is the root cause.

 

[erancarmon]

Hi, For me the root cause was an Intel HD Graphics 3000 - AMD Radeon HD M7400 conflict
I uninstalled AMD CCC (15.7) and installed the (earlier) WIN 8 version (14.4)