The price is attractive but it is not a standard OEM version is the version for DELL computer. This will work perfectly, but depending on your configuration, it is possible that the automatic activation over the Internet is not working and that we should go through a Microsoft telephone advisor. In this case, it is not advisable to say that this product was purchased AMAZON .... Say rather that you reinstall your computer DELL Vostro after repairs following a breakdown and map change mother ....