Why does my laptop show black screen upon startup and why did my laptop get unlocked by an incorrect PIN I had deliberately entered?

By Windows 11
January 30 in Windows 11

https://windowsbb.com/topic/566264-why-does-my-laptop-show-black-screen-upon-startup-and-why-did-my-laptop-get-unlocked-by-an-incorrect-pin-i-had-deliberately-entered/

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Windows 11

Posted January 30

During startup of my Windows 11 PC, I encounter an error related to graphics and display sometimes. The screen becomes completely black and I cannot even see my mouse pointer. To overcome this issue, during entering my PIN, I purposely enter an incorrect PIN and then I enter the correct one. This solves the problem. However, today I entered the wrong PIN and still the computer got unlocked and I had access as if I had entered the correct PIN. Now, I need help with two things: 1-How can I solve this display problem that is occurring very often? and 2-Can Microsoft or any representative explain

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