It is very normal to have multiple operating systems installed on a PC. If you need to use Linux and Windows for your work purposes or any other purposes, the obvious option you have is dual-booting ...
How-To Geek on MSN
I only recommend these 3 Linux distros for dual booting with Windows
Give each OS a real job—three Linux distros that actually make dual booting worthwhile.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results