Windows boot freeze

Hello,
i have hp probook 645 g1 and i added ram and ssd drive to it. After that i made clean install of windows 10 pro, and now sometimes i get problem with booting the laptop. It freezes on startup on HP logo and I have to shut it down manualy and do hard reset. I have checker RAMs if they are okay, and ssd is new but i checked it to. BIOS is set to factory conditions and I really dont know what to do more. Interesting part is that laptop boots up normally in 9 out of 10 times. Any ideas?
Thank you

 

is there an option in the HP bios to display the detailed bootup screen, like it shows the counting of RAM ? Maybe an error message is hidden by the HP logo. We need an error message .

 

Hi again, sorry for late answer to your question lunarlander, I have managed to fix the problem. Or i don`t really know what the problem was, but i have been playing with it for few hours and now it works fine. Thank you