However, intrepid hackers - in the good sense of the word - have been hacking away at Microsoft's limitations. On a Windows RT device, you'll need to install Modern apps from the Windows Store instead of desktop apps from the web.
To get a new desktop program, users will have to ask Microsoft nicely - just as they asked for Outlook or Windows RT and will be receiving it soon. If you want to run another desktop program, tough luck - you can only run desktop programs specifically written by Microsoft. These Office apps are limited versions, without support for macros and plug-ins. In Windows RT 8.1, you'll also be able to use the popular Outlook mail client on the desktop.
You can use Internet Explorer, File Explorer, Remote Desktop, Notepad, Paint, and other tools - but there's no Windows Media Player. Windows RT also comes bundled with desktop versions of Word, Excel, PowerPoint, and OneNote. Windows RT includes most of the standard Windows desktop programs that come with Windows.