Problem:
Unable
to activate windows 7 which was upgraded from Vista SP1 or even a clean
install.
When trying to activate via KMS receive an error
0xC004F074.
How to Resolve:
This
Error 0xC004F074 stands for The Software licensing service Reported that the
computer could not be activated. The key management service (KMS) is
unavailable.
This is
a DNS issue that the necessary KMS server was not auto discovered in the
particular DOMAIN
The
workaround is to set the KMS server explicitly using "slmgr /skms
re-vl-vm".
/skms
specifies the name of a KMS host. this disables auto-discovery.
In my
example, this instructs the client to use re-vl-vm as a KMS host.
Note
that there is a typo. The KMS host for W7 in Corpnet is "red-vl-vm"
Note: use this only when a client machine
is not receiving the KMS SRV records from DNS.
