no log in password to use for 'command prompt'

all of a sudden my HP 9200 notebook w/windows 8 went into an 'automatic repair' that failed.... can't use 'refresh' because I don't have password to use with my log in name..... can't use command prompt for that same reason.....i am a 63yr old 'amateur' pc person..... am communicating now by windows 8'source' tablet..... used a spare 'flashdrive' to download windows password recovery tool pro .....15 day trial..... but don't know what I am actually doing.....I am completely disabled and on SSI, so a PC 'repair shop' visit would not take place until after the end of the month....I did go into the 'bios' and reset to default settings...... any help to get me and this PC on its 'feet' would be a 'godsend'...... thank you in advance.....bigpolishdog