OK. You need to save or document:
username/passwords for all your online sites (like here)
install files and serial numbers for whatever software you want to keep
all your personal files.
Save all of this stuff to another drive. A USB stick works.
You are starting fresh. A blank slate.
When I save all of this to a usb, do I delete like everything?
Purchase Win 10 Home x64. $100 at Newegg
http://www.amazon.com/Management-JOTO-Organizer-Computer-Entertainment/dp/B015HWXICC
Find the newest drivers for all your hardware. Save these to a USB stick. Primarily the LAN driver.
Once you are absolutely sure...(check twice or 3 times)
Boot from your Win 10 install media.
When it asks where, select each existing partition, Delete. This leave one large space.
Let Windows install to that,creating what it needs.
Once it is done, install your drivers.
Activate and run all the existing updates.
Once you're satisfied...then start to install your applications.