|"Specs: it don't matter"|
Actually, it do matter. Is it that you don't know or you just didn't feel like filling in the info? We need to know which version of Windows you're running, which Linux distro you attempted to install, how much RAM you have, which graphics, & how you went about installing Linux (Windows with Linux or Linux with Windows?). It sounds like you need to get the Windows boot loader back but your best bet may be to completely wipe the HDD & reinstall Windows from scratch.