Thank you very much for answering.
Earlier I ran memtest86 from floppy disk, checked each stick individually and had approx 3-4 cycles without any issues each.
Back to System checking, first I set verifier as described above. After everything set restarted pc. Nothing happend, however I realized that now everything is slower. Free commander, chrome load up slower.
Afterwards, I ran syste file checker from command line, some errors were found and corrected upon restart.
(I did not do anything in the mean time and restarted immediatelly in both cases so nothing installed or used etc)
Upon second restart BSOD happend again, during memory dump I could hear stuttering sound from speaker that I had not experienced before. This time a new error > IRQL_not_less or equal, but again at the same file ntoskrnl.exe.
PLease find dump files of this event attached.
I think verifier crashed this time is there a way to turn it off now as my PC seems to be slower?
I am not overcloking anything actually we are after a very fresh install of windows, did it on Monday. BIOS is at default settings except boot sequence.
Thank you for analysing these in advance