This is an addendum post to the original KMS info post with a bunch of useful info I gathered recently. Useful KMS and Windows activation commands: Change Windows 2008 R2 license key type from Retail to KMS activated: Slmgr /ipk 489J6-VHDMP-X63PK-3K798-CPX3Y Clear cached KMS host: Slmgr.vbs /ckms Disable KMS host caching: Slmgr.vbs /ckhc Flush local … Continue reading KMS Part 2