I want to break my win 10 password which I have forgot . I know one method of breaking the passcode by using bootable Device . Is there any other method to other than using bootable device for breaking the passcode? please suggest some technique

What payment gateway does the Google pay use ? I couldn't get a clear answer

I'm in the big confusion . What are these things django, flask,ruby on rails ,servlets, in python and what is the use. I know it's a web application framework but what does it do.many terms like "JSON,XML,"and what is the relationship between those term above with server side and client side application.what if I learn above stuff and what job will I get ? I heard that service side job is more pressured than product based job.and what are the service based and product based jobs ?what are the course that I need to learn to join in product based job. I have no clear vision . Can any one give a clear vision about this

While I'm doing my hacker rank problem I have seen new word instead of using letter like I,j,k .but it is weired .Can I just know what is t_itr is that has any operation? In for loop "for "t_itr" in range t"

I try to take print using elementary os. I have connected the printer usb port but in printer settings it is not showing up the printer name.what I need to do.

I have installed elementary os . Actually it is the dual boot . I installed win10 as primary os and elementary as secondary .every thing is working fine but if I installed any package in terminal means it throws error .
Error "e: unble to locate the package "
I just googled it but it shows for Ubuntu . Not for elementary . Elementary os has launched this year. So help me out to sort this issue