I downloaded and installed all the drivers from my PC Specialists account and now I have only first one left on the list which is "Base System Device".
I went to Windows Settings - Recovery - Reset this PC - Remove everything.
After that I installed the system from the Windows that was already in the laptop when I bought it.
After that installed all the updates for Windows and after the Nvidia drivers.
I meant clean reinstall of windows as UBUYSA told me to do. Sorry for my English... And also now the fan is completely silent. Like there is no power in GPU but it shows that it works fine in the Task Manager.