Windows 8.1 Pro Retail Key for 8.1
slmgr.vbs -ipk 9N3HG-3JGWK-QHBB2-XJXH8-RX7PY
Windows 8.1 RTM Pro WMC
slmgr.vbs -ipk 2MHG3-K27XM-CBNB9-Y3DVY-B4DJD
slmgr.vbs -ipk 2VQ9T-VXRNR-8TFB3-GT4QJ-XWXWD
slmgr.vbs -ipk 38W8M-CRJNP-7VRRQ-WQCFW-XWXWD
slmgr.vbs -ipk 3MJYQ-232NC-29XH4-BC23P-4RDJD