It should not be a problem. I had recently found out that even if you do not have a kindle you can easily read it on your computer. Amazon has made the kindle ebooks in such a way that they can be read on as many Apps as possible such as smart phones, computers and tablets. To know about this, go to your amazon home page, and click on "Books" under Shop by Department the left side menu and click on "Kindle". Under this you can see "Kindle Apps & Resources" and below this, you will find "Free Kindle Reading Apps".
Choose your preferred apps for reading. While reading a kindle ebook on your PC you have the advantage of changing the font size, background colour, brightness, and number of words per line etc. Though I own a kindle I prefer sometimes to read it on the computer, for a better reading experience.
So, now don't hesitate to download a free ebook or your favorite ebook and read it on your preferred device.