Seeking some clarification on activators and also legit Office activation. I have laptop with Windows 8.1 Home Pre-Activated OEM version. I want to test how various Office activators work so if I install Office 2013 Volume Edition on my pre-activated Windows 8.1 and activate Office 2013 using Microsoft Toolkit or any such activator, will it break anything in Pre-activated Windows? Also later is it possible to completely remove Office (that was activated using any activators), install a retail version, buy a product key and then do a proper activation on the same machine? I don’t wish to encounter any errors while doing proper activation just because previously any third party activators were used on the same machine.