Windows 10: Windows 10 Startup repair wont't recognize my newly changed password

I have a Dell XPS 8500 and recently have been having on and off black screen problems. I decided to use Windows 10 startup repair tool but had forgotten my password which it requests. I changed my password today, attempted to use the startup repair feature and it won't recognize my new password. Do I have to change some setting somewhere?

:)

 

Windows Startup password

Is it possible to remove a startup password without being able to log into the system? A friend's laptop just prompt her today for a password that she never enabled. Now, she does have a standard user account password, but that doesn't work for the startup password. She had the computer for about a year now and it has never asked for a startup password until today.

I tried to use Hiren Boot CD to run a diagnostic on the laptop, but it has a bsod. Windows 10 normal boot crashes as well

 

Windows 10 random automatic repair after changing boot priority.

Hello. So i have an Windows 10 Pro. Sometimes when i am changing in bios boot order from USB to HDD ( SDD ) windows starts booting with AUTOMATIC REPAIR and then restarting. Is this something with BIOS \ Windows 10 bug related? Tested on pc and on laptop , and sometimes it doing the same.


Situation on PC first,listen:

Few days ago after i change boot in UEFI BIOS from USB to SSD.
Then Windows 10 showed at 1 boot Automatic Repair.
When starting Windows 10 boot loader starts by "preparing automatic repair" and diagnosing pc.
Interesting is that if I restart Windows (after procedure mentioned earlier) it will boot normally. This startup problem was occured only when starting system again after shutdown or restarted pc from windows.So i was needed 2 boots to boot properly to windows.
But on pc, format was needed to remove completely issue and after format is fine.

Pc :
2x8gb Kingston Hyperx 1600mhz DDR3
SSD samsung Evo 250 gb
4790k stock
Asus Sabertooth Z97 Mark 2 with UEFI BIOS


Now laptop with old standard bios:
On laptop i made the same operation, change boot from USB to HDD and on first boot Windows 10 shows Automatic Repair. But it happened once and i cant reproduce. No format was needed.

laptop is very old with 2gb ram

Why on pc format was needed when on laptop not?



Thanks for suggestions.

 

Can't get GPU-Z to start with Windows 8.1 startup

I'm not sure how to do that. Could you list the steps for a noob?