gaming computer viper 2 after windows 10 install tried factory reset

Ok so my nephew got a "gaming" PC i think a viper 2 or something original windows 7 but used disk to install windows 10 without activating..... Start wouldn't work so tried erasing admin account and create one w/o password then still couldn't get start to come up so i looked up different tricks non of witch worked so tried factory resetting and wiping all files got an error resseting tried ( In the new window, Select Troubleshoot --> Advanced options --> Command prompt.
3.Next, select the administrator account.
4.Now provide the credentials for the admin account you opted in the previous step.) But he didn't remember password for admin acc PC then reset well turned off now only misi flashes on black screen with comp on! And im completely unable to get anything else to boot even tried hard reboot pc turned off and stayed off until manually turned back on just to do same theing black screen with misi flashing on for a few secs

It wont even completely boot up to be able to type anything just flashes misi the black then misi no destop or anything else

It had windows 7 previously but because it wasnt backedup when resseting it said it would resset with windows 10....

He still has w10 disc i think it was cyberbit or cyber-somthing....
64 bit

Thanks for your time swafega 👍

Funny thing is that windows 10 was working as desktop with Cortana but start menu wouldnt pull up you click it does Little loading cursor then nothing like you never tried opening it... that is why i figured resseting computer cause i had no idea what was going on so figure trying to start over..,Also no internet connection due to earlier windows 7 and 8 wifi antenna....

Pcmoney said:

used disk to install windows 10 without activating

Pcmoney said:

He still has w10 disc i think it was cyberbit or cyber-somthing....
64 bit

Something just doesn't sound right here.....