All good things must come to an end, even Windows 7. After January 14, 2020, Microsoft will no longer provide security updates or support for PCs running Windows 7. Neither WKO4 nor WKO5 support Windows 7, but you can keep the good times rolling by upgrading your operating system to Windows 10.
Click here for WKO5 minimum hardware requirements.
Click here for WKO4 minimum hardware requirements.