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organizations can deploy merely two KMS hosts for their whole infrastructure (one main KMS host and one backup host for redundancy).
KMS activation renewal
KMS activations are valid for 180 days. This is called the activation validity interval. To remain activated, KMS clients must renew their activation by connecting to the KMS host at least one time every 180 days. By default, KMS client computers attempt to renew their activation every seven days. After a client’s activation is renewed, the activation validity interval begins again.
Use KMS for computers that run Windows and Office 2013 Preview client products
When you use KMS to activate computers that run both Windows and Office 2013 Preview, you have the following options for Office 2013 Preview:
∙Use the same KMS host on a computer that runs Windows Server 2003 (Standard, Enterprise, and Datacenter editions
∙Use separate KMS hosts for computers that run Windows and Office 2013 Preview.
Important:
If you already have a KMS host that is set up to activate Windows products, you still have to install the Office 2013 Preview KMS host license files, enter the Office 2013 Preview KMS host key, and activate the key. To do this, go to the Microsoft Office 2013 KMS Host License Pack website, and then download and run KeyManagementServiceHost.exe.
The following operating systems are supported as an Office 2013 Preview KMS host:
∙Volume License editions of Windows 7
∙Volume License editions of Windows 8
∙Windows Server 2012
∙Windows Server 2008 R2
If you already use a computer that runs as your Windows KMS host and you want to
Multiple Activation Key (MAK)
A MAK key is used for
There are two ways to activate computers by using a MAK key:
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