I would like to add my Office 2010 KMS Key to my Windows 10 Pro Host Computer. The Windows 10 Pro is also a KMS host with a volume activation key Installed and activated and working. I successfully added my office pro plus 2013 KMS Product key to this Windows 10 Pro Host Computer. For office 2010 kms key, I tried downloading the Office license activation pack but its says windows 10 not supported. I tried adding the key through the Volume Activation Tools but it wont take it. I had it working fine before on a windows 7 pro kms host pc, but now we upgraded to windows 10 and i cant get the key to install. Any help is appreciated thank you!