Sorry if i sound like a noob ¿Can Windows server 2008 r2 be activated via Slic - Oem Key - cert ? I have a HP computer that came with Windows 7 Pro so I'm sure it has Slic 2.1 I want to install Server 2008 R2.... so... I have found OEM's key's but not the cert. Is the cert the same as Windows 7? It is possible to OEM activate Windows server 2008 r2 the same way as with Windows 7? thanks to all in advance.