Hi,

You can set up and odoo instance in your windows machine and then take backup of your current db and then restore it in your windows machine.

In case if you have used any custom codes, make sure that you have also moved/copied that custom modules to your windows machine and available for odoo instance.

To take a database backup from odoo instance, you can do it as follows: How To Back Up Database In Odoo

Once you take db backup, go to db manager page and using the restore button, restore the db.

Thanks