Windows 10: Screen just shook, black screen appeared and taskbar moved to top. Now, my mouse is fuzzy...

Is this a driver error? Device manager says my drivers are already updated. What I saw was:- Mostly black screen- Taskbar teleported to top of screen- Mouse cursor kept leaving a white trail- Then, the mouse cursor outline moved a few pixels apparently, and looked kinda fuzzy.I have spilled water on my computer's keyboard before, months ago. Could that be it? On the lower part space, b, n, left ctrl, windows all stopped working.

:)

 

Desktop and Taskbar won't appear - Black screen

After performing the latest Windows Update, I restarted my computer and logged in with no problems at all (the login screen did appear). When it got to where the desktop should be, I was faced with a blank screen and a mouse cursor that I could move around. After playing around a bit I realized I could do Ctrl+Alt+Del and open task manager through which I could manually start any of my programs and they would all appear on top of the black screen (the windows are perfectly normal, stacking and moving as they should), I just don't have a taskbar or desktop with which to navigate them and am resigned to using Alt+Tab. If I minimize a window, it shrinks into a small bar with the options to reopen, maximize, or close the window. I can open any file location with Task Manager and all my files are still there and I can access all of them. I've tried updating graphics drivers, I've tried troubleshooting update errors, but I am genuinely lost as I am not very tech-savvy.

 

Black Screen with working mouse cursor but not keyboard

Its a black screen with no menu or icons but you can move the mouse freely

 

Black Dots appears on screen

The thread which u provided is when windows hang but in my case it doesn't hang it works fine but as u see in first picture icons,taskbar are displayed