i didn't get it in a box or anything. it was already in my computer. windows 7 was already in my computer. again i don't have a disc or anything.
In that case, the licence will probably not be transferable to a new PC. Getting a disc is not hard; the licence is not tied to the disc so you can easily borrow one. There are also sites where official .ISO's are available for download. The tricky thing is obtaining the licence, and for that it may be best to just buy a new copy of Windows.