how do i make msn my homepage in chrome?

if it keeps changing back to something else after you set it, look for a line under the setting saying it's controlled by an extension. remove that extension, it's usually something that came bundled with a free download.

Settings > On start-up > Open a specific page or set of pages > Add a new page, and type in the MSN address. That covers when Chrome opens. If you also want the little house button to take you there, go to Settings > Appearance, switch on Show home button and put the same address in the box under it.