Eventually, support for every Windows version expires, leaving PCs full of holes, entry points for malware, and opportunities for hackers.
It’s been two years since Microsoft ended support for Windows XP, the popular operating system that’s been around since 2001 and which many people just don’t seem willing to let go.
Microsoft did about all it could to drag XP-ers into the present with pop-up warnings urging them that they need to upgrade, and a free migration tool to help people transfer their files and settings to Windows 7 or Windows 8.
on April 8th, 2014 meant a quick transition to one of the newer Windows operating systems (OS) on the market.
For a chosen few however — groups mostly consisting of long-time customers using Windows XP for medical, business and offices purposes — the end of support meant potentially catastrophic problems for long-time users.
By the way, there are some Mac OS X users who are using out-of-support versions, too, meaning they are also vulnerable to never-going-to-be-fixed security holes.