Microsoft Windows 10 released: Its new features, why is it free, and is it worth downloading?

At long last, Internet Explorer is dead. Well, for the most part.

With Wednesday's release of Windows 10, Microsoft ushered in a new age for the PC giant; one that improves upon Windows 8 shortcomings and heeds advice from lifelong users who would rather use a dated operating system than switch to Apple's iOS.

The best part is it's all free. Again, for the most part.

A Windows 10 upgrade is free if you download it within a year of its release. There aren't any gimmick or hidden fees involved. Honestly. Upgrading outside this time period, however, runs about $119.99 for the "Home" version and $199.99 for "Windows 10 Pro." Even then, it is under Extended Support until 2025.

Those already running Windows 7.1 or 8 don't have to do much other than wait for the new icon to appear in the taskbar. Microsoft has released a somewhat complicated set of instructions in case it doesn't appear. Unfortunately, Windows Vista and XP users are excluded from the complimentary update.

Given Windows 8's disappointing release three years ago - and the abhorrent response to Vista before it - and a need to work through unforeseen bugs, it makes sense for more casual user to wait before making a full conversion. Just keep in mind, you'll be missing out on some features sure to bring back your faith in PC's.

The first thing Microsoft did in developing Windows 10 is listen to customer feedback, going so far as to release a public preview. What they found is there was strong disapproval for Windows 8's iPad-like interface desktop users constantly had to toggle through.

Thankfully, the classic Start Menu is back, a la the Windows 1995 version millennials grew up with, meaning both desktop and tablet users don't have to deal with the touch interface anymore. Everything about this update is nostalgic, from system tray icons to its iconic default backgrounds.

Also returning to the Start menu are "Live Tiles" that debut with Windows 8. The overwhelming feature doesn't feel as obtrusive this time around as they're more specific, even keeping you updated on social media posts and new additions to Netflix.

Those on handheld devices can switch to Tablet Mode with a single tap from the Action Center menu, though tablet and smartphone software won't immediately be made available.

Another big change is in a revamped built-in browser. Gone is Internet Explorer, the clunky program made obsolete by Mozilla's Firefox and Google Chrome.

Edge is a sleek, modern replacement equipped with the ability to annotate by using either a pen, finger, or keyboard. More specifically, the search feature has become Cortana; a Siri-like digital assistant that originally made its debut on Windows Phone.

Aside from general web searches, Cortana acts as an all-knowing search engine capable of finding anything stored on your PC. Even those without Windows 10 or a Microsoft Phone will have Cortana by their side in the near future as apps are being tested for Android smartphones and IPhones.

There's always a chance Windows 10 won't be for you. Microsoft will let users revert to old versions by simply going to Settings > Updates & Security > Recovery.

Those willing to stick it out will find it's well worth the download.