Windows 10: Black Screensaver gone & 2 sign-ons when should be none

Lenovo Ideapad P400 touch.

Hard drive was failing, new one installed.
Was originally Windows 8, upgraded to 10 last year, & 10 was installed when I get it back.
I always use the black screensaver as I leave the computer on all night in my room.
The only one now available is blank, which I don't like because the screen is to bright.
Would like to get the black one back.

When I got it back, I again set it to sign in automatically, & somehow, 2 different sign ins are showing up on the log-in screen shown in the attachment.
It first says the password is wrong.
When I click on the other sign-in, it takes the pin that I set up.
I tried disabling the pin, but it then asks for my password.

I can't figure out how to fix either one of the above.

:)

 

Nokia N8 PR1.1 weird colour screensaver issue.

Yes, the animated screensaver has gone.

The breathing light now only works (correctly IMHO) when the "None" option is chosen in screensaver settings.

 

Extremely slow startup & wakeup

I get the black screen before sign-in, so I tried the instructions for that & it did not work. I have 2 display adapters listed, AMD Radeon HD 6700M Series & Intel(R) HD Graphics 3000. Both have updated drivers, in fact as soon as I upgraded to Windows 10,
it updated my AMD Radeon driver. So I tried to revert back to the old driver to see if that worked, but it did not, the startup time was about the same plus my brightness would not work anymore, so I reinstalled the new driver. I then tried to disable the
Intel Graphics one & restarted laptop. It started much faster, it only took about 2 minutes to startup instead of 10 minutes. But disabling that messed with the AMD Radeon one, the graphics were terrible, blurred & huge icons, so I went back on the device
manager & seen that the AMD Radeon one was not running either. So I re-enabled the Intel one then restarted laptop, then tried disabling the AMD Radeon one this time, but the same thing happened. Startup went faster, like around 2 minutes, but the same terrible,
blurred & huge icons were back. I went back on device manager & sure enough Intel graphics was not running. So the way it looks is each of my display adapters needs the other one to run, they can not run by themselves for some reason.

So basically the instructions on that page did not help at all. I am still stuck with the black screen for several minutes after the blue window screen, but before the welcome/sign-in screen. Plus it still has the black screen when opening the laptop back
up, it takes a few minutes to come out of sleep. So I don't just get the black screen on startup, I get it on wake-up also.

Plus I noticed that Windows 10 freezes whenever my screensaver comes on, no matter which screensaver I choose. My screensaver works when previewing it, but when it loads on its own after the set number of minutes, it freezes my laptop for several minutes.
When I have it on the bubbles screensaver it comes on with a black background instead of the see-thru one that it is supposed to have & then it freezes.