Fan and blue screen issue

[Emre7]

I bought my laptop like 4 years ago and 2 years ago I accidentally dropped it and it broke. 2 months ago I decided to fix it. I fıxed the screen and it was working fine. But about a week ago I opened inside of my computer to clean the dust. After I cleaned the dust I realized that some piece of the part that I put my screws in was broken or lost. I looked everywhere but I couldnt find it. It was a very tiny piece. It happend to 4 of my screws. After I finished everything and opened my laptop, I got an error that says

• The system has detected that a cooling fan is not operating correctly.
• Continued operation is not recommended and may cause unpredictable behavior that could result in random shutdown, data loss or possible system damage. The system will shut down in 15 seconds. To prevent shutdown and continue operation, press the Enter key now.
• System Fan (90b)                                                                                                                                                                                                         I still get this error and when I put my hands under my laptop and lift it, my screen goes crazy it shows some black screen and gets a blue screen. I dont know what the problem is I did not do anything to damage the fan but it is probably damaged. Even now I can feel the heat of my laptop because the fan is not working. If the problem is with the fan, should I replace it? It might be because of the screws so should I buy new screws? Thanks.
  

[Betty0610]

@Emre7

Welcome to the HP Support Community.

Let's try the steps from here: https://support.hp.com/in-en/document/c03620929

Let me know if this helps.

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