If you already have Windows 8 installed you can find out your version by going to the control panel, then selecting 'System and Security' then 'System'. The screen and version is in Figure 1.
You can navigate to the control panel 3 ways:
- In the Windows 8 start screen, start typing 'Control Panel' then you will see the icon
- In Desktop mode (click the desktop icon in W8 view), move your cursor to the bottom left corner, then right click. You will see a Control Panel option to click
- Right click inside W8 start screen, select 'All Apps'. The Control Panel option will be available there
Figure 1 - The Windows version that is being run
Windows 8
Windows 8 is the basic edition of Windows for the IA-32 and x64 architectures. Some people refer to this edition as 'Core' Windows. This edition contains features aimed at the home market segment and provides all of the basic new Windows 8 features.
Windows 8 Pro (or Windows 8 Pro with Media Center)
Windows 8 Pro is comparable to Windows 7 Professional and Ultimate and is targeted towards enthusiasts and business users; it includes all the features of Windows 8. Additional features include the ability to receive Remote Desktop connections, the ability to participate in a Windows Server domain, Encrypting File System, Hyper-V, and Virtual Hard Disk Booting, Group Policy as well as BitLocker and BitLocker To Go. Windows Media Center functionality will be available only for Windows 8 Pro as a separate software package.
Windows 8 Enterprise
Windows 8 Enterprise provides all the features in Windows 8 Pro (except the ability to install the Windows Media Center add-on), with additional features to assist with IT organization (see table below). This edition is available to Software Assurance customers, as well as MSDN and Technet Professional subscribers, and was released on August 16, 2012.
Windows RT
Windows RT will only be available pre-installed on ARM-based devices such as tablet PCs. It will include touch-optimized desktop versions of the basic set of Office 2013 applications to users—Microsoft Word, Excel, PowerPoint, and OneNote, and support device encryption capabilities. Several business-focused features such as Group Policy and domain support are not included.
http://en.wikipedia.org/wiki/Windows_8_editions#cite_note-official1-4
| Features | Windows RT | Windows 8 | Windows 8 Pro | Windows 8 Enterprise |
|---|---|---|---|---|
| Availability | Pre-installed on devices | Most channels | Most channels | Volume License customers |
| Architecture | ARM (32-bit) | IA-32 (32-bit) or x64 (64-bit) | IA-32 (32-bit) or x64 (64-bit) | IA-32 (32-bit) or x64 (64-bit) |
| Maximum physical memory (RAM) | ? | 4 GB on IA-32 128 GB on x64 |
4 GB on IA-32 512 GB on x64 |
4 GB on IA-32 512 GB on x64 |
| Trusted boot | Yes | Yes | Yes | Yes |
| Picture password | Yes | Yes | Yes | Yes |
| Start screen, Semantic Zoom, Live Tiles | Yes | Yes | Yes | Yes |
| Touch and Thumb keyboard | Yes | Yes | Yes | Yes |
| Language packs | Yes | Yes | Yes | Yes |
| Updated File Explorer | Yes | Yes | Yes | Yes |
| Standard apps | Yes | Yes | Yes | Yes |
| File History | Yes | Yes | Yes | Yes |
| Refresh and reset of OS | Yes | Yes | Yes | Yes |
| Play To | Yes | Yes | Yes | Yes |
| Connected standby | Yes | Yes | Yes | Yes |
| Windows Update | Yes | Yes | Yes | Yes |
| Windows Defender | Yes | Yes | Yes | Yes |
| Better multi-monitor support | Yes | Yes | Yes | Yes |
| New Windows Task Manager | Yes | Yes | Yes | Yes |
| ISO image and VHD mounting | Yes | Yes | Yes | Yes |
| Mobile broadband features | Yes | Yes | Yes | Yes |
| Microsoft account integration | Yes | Yes | Yes | Yes |
| Internet Explorer 10 | Yes | Yes | Yes | Yes |
| SmartScreen | Yes | Yes | Yes | Yes |
| Windows Store | Yes | Yes | Yes | Yes |
| Xbox Live app (including Xbox Live Arcade) | Yes | Yes | Yes | Yes |
| Exchange ActiveSync | Yes | Yes | Yes | Yes |
| Snap | Yes | Yes | Yes | Yes |
| Can connect to a VPN? | Yes | Yes | Yes | Yes |
| Desktop | Partial | Yes | Yes | Yes |
| Supported third-party apps | Windows Store apps only | Windows Store and desktop | Windows Store and desktop | Windows Store and desktop |
| Remote Desktop | Client only | Client only | Client and host | Client and host |
| Storage Spaces | No | Yes | Yes | Yes |
| Windows Media Player | No | Yes | Yes | Yes |
| Encryption features | Device encryption[b] | Unavailable | BitLocker and EFS | BitLocker and EFS |
| Sideload Windows Store apps | Partial[c] | No | Partial[c] | Partial[c] |
| Boot from VHD | No | No | Yes | Yes |
| Can join a Windows domain? | No | No | Yes | Yes |
| Group Policy | No | No | Yes | Yes |
| Hyper-V | No | No | On 64-bit versions only with SLAT capable CPU | |
| AppLocker | No | No | No | Yes |
| Windows To Go | No | No | No | Yes |
| DirectAccess | No | No | No | Yes |
| BranchCache | No | No | No | Yes |
| Can be virtualized by RemoteFX? | No | No | No | Yes |
| Services for Network File System | No | No | No | Yes |
| Microsoft Office apps bundled with OS | Yes | No | No | No |
| Windows Media Center | No | No | Via an add-in[25] | No |
| Feature | Windows RT | Windows 8 | Windows 8 Pro | Windows 8 Enterprise |
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