What is/are the problem(s) now?
To try modifying windows password I could use ubcd. But it is not designed for you because you cant even do simple install and it is lot more complicated to modify forgotten windows password so forget it at least now. (maybe you can do it in the future if needed)
To remove some bios passwords temporarily disconnect the bios battery for few minutes (the longer time the better) and put it back. If it is non removable short it for short time
do at your own risk. (google it for more information).
To fix disk space problems shrink windows partition with windows disk partition tool (google it).
No root file system is defined.
Please correct this from the partitioning menu.
To make it easier use automatic partitioning (install linuxlite without deleting windows) or read some tutorial about manual partitioning