Windows 10 Pro with official direct download link $15 https://payivy.com/v/b943f (if used on win 10 home edition will be automatically upgraded to pro)
Windows 10 Education with direct download $5 https://payivy.com/v/3fe58
Windows 10 Enterprise 20 PCs with official direct download link $20 https://payivy.com/v/b6c02

Windows 8.1 Professional with official direct download link  - multi languages $3 https://payivy.com/v/f9673
Windows 7 Professional with direct download link $6 https://payivy.com/v/889b0
Windows 8 Professional with official direct download link $3 https://payivy.com/v/6dd1b