blue screen of death HP laptop


New Member
My sons laptop has blue screen with code 0xc0000225. I have tried several suggestions to fix it but to no avail. Can't system restore as it says Norton preventing it, but can't access anything on laptop to uninstall Norton. Downloaded windows 10 onto new USB , but no prompt to open it comes up. Literally going round in circles, also tried command prompt and nothing. Any suggestions greatly appreciated. PS I am no techno whizz.