Hi yankeelady2015, you simply did a miracle! I performed the scannow as requested 16 day ago (CBS log posted above, with repairs). I tested the pc at reboot for about 10 days....always perfect!!! Thanks this wonderful forum my 10-years-old pc seems now to be a brand new pc! boot process in 3 minutes (inclusive antivirus) and zero hangs, zero BSOD: very good. I warmly warmly thank you a lot!!!! ...