1507 Windows 10

This version was distinct because it was essentially Windows 8.1 with a facelift. Under the hood, the kernel and driver architecture were very similar to its predecessor. While this provided excellent hardware compatibility—allowing older machines to upgrade easily—it also carried forward legacy code that would soon prove problematic.

Because 1507 was the "RTM" version, many organizations—particularly those with strict change management policies—clung to it. They treated it like Windows XP or Windows 7, assuming that if it worked, there was no need to upgrade. 1507 windows 10