Is it possible?

Is it possible to buy a computer without a bundled Winblows?

I need a laptop for my EOS (end-of-studies) project, witch is the creation of a linux distro, and as I'm on a budget, I dont want to lose 100$ inuseless bundled software

Yes it is.

It is possible but pointless. There are vendors which sell notebooks with Linux prenstalled or OS less. However they're more expensive than a similar HP or Dell machine. So why bother? Buy it, format the disk, install Linux.