If your computers are still running Windows 8.1, a friendly reminder: the operating system (OS) officially has only 30 days to live before it reaches its end-of-support date.Windows 8.1 also introduced new enhancements, such as the ability to snap up to four apps on a single display, a new Bing-based unified search system, and deeper integration with SkyDrive (now OneDrive).However, any new vulnerabilities or security flaws discovered in Windows 8.1 will no longer be patched, leaving your PC at risk of malware, phishing, and other security threats.In fact, many ransomware groups exploit unpatched vulnerabilities to infiltrate systems.Exercise caution when choosing this option, however, as some of your Windows apps might not be available on another platform."