Windows 10: White line upper left corner before startup

Discus and support White line upper left corner before startup in Windows 10 Performance & Maintenance to solve the problem; Ever since my PC crashed a couple of days ago, before startup, for like 30 seconds it started with like 5-10 seconds, a white line appears on the upper... Discussion in 'Windows 10 Performance & Maintenance' started by edendew, Jun 11, 2021 at 12:22 PM.

  1. edendew Win User

    White line upper left corner before startup


    Ever since my PC crashed a couple of days ago, before startup, for like 30 seconds it started with like 5-10 seconds, a white line appears on the upper left corner of my screenNon-blinking. My PC does boot normally after this, but I would like to fix it before it won't boot at all anymore.Does anyone have a fix for this?Thank you very much

    :)
     

  2. My windows 10 black screen, white line i upper left corner this morning. What do I do?

    My windows 10 black screen, white line i upper left corner this morning. What do I do?
     
  3. twiggs462 Win User
    Small White Square in Upper Left Corner - Cannot Remove

    This is going to be hard to see, but above the left of the recycle bin icon... there is a tiny white square. When I put my mouse cursor over it I get the cursor to change to the activity cursor (spinning blue circle) - I have no idea what application is causing this and have stopped all tasks starting with windows on boot.

    Any ones else ever see this?


    White line upper left corner before startup [​IMG]



    White line upper left corner before startup [​IMG]


    HP Spectre Laptop with latest BIOS as of this post installed. All windows updates.
     
  4. twiggs462 Win User

    White line upper left corner before startup

    Small White Square in Upper Left Corner - Cannot Remove

    Here is the exact process


    White line upper left corner before startup [​IMG]
     
Thema:

White line upper left corner before startup

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