| Features | Starter | Home Basic | Home Premium | Professional | Enterprise | Ultimate |
|---|---|---|---|---|---|---|
| Licensing scheme | OEM licensing | Retail and OEM licensing in emerging markets | Retail and OEM licensing | Retail, OEM, and volume licensing[33] | Volume licensing[33] | Retail and OEM licensing |
| Maximum physical memory (RAM) (IA-32)[34] | 2 GB | 4 GB | 4 GB | 4 GB | 4 GB | 4 GB |
| Maximum physical memory (RAM) (x64)[34] | N/A | 8 GB | 16 GB | 192 GB | 192 GB | 192 GB |
| Maximum physical CPUs supported[a][35] | 1 | 1 | 1 | 2 | 2 | 2 |
| Built-in AVCHD support[36] | No | Yes | Yes | Yes | Yes | Yes |
| Multiple monitors | No | Yes | Yes | Yes | Yes | Yes |
| Fast user switching | No | Yes | Yes | Yes | Yes | Yes |
| Desktop Window Manager | No | Yes | Yes | Yes | Yes | Yes |
| Windows Mobility Center | No | Yes | Yes | Yes | Yes | Yes |
| Printing via the Internet | No[37] | Yes | Yes | Yes | Yes | Yes |
| Windows Parental Controls[38] | No | Yes | Yes | Yes | Yes | Yes |
| 64-bit versions | No | Yes, but not in retail SKUs | Yes | Yes | Yes | Yes |
| Windows Aero | No | Partial | Yes | Yes | Yes | Yes |
| Internet connection sharing | No | No | Yes | Yes | Yes | Yes |
| Built-in DVD (MPEG-2 and Dolby Digital) decoder[3] | No | No | Yes | Yes | Yes | Yes |
| Multi-touch | No | No | Yes | Yes | Yes | Yes |
| Windows Media Center | No | No | Yes | Yes | Yes | Yes |
| Windows Media Player remote media experience[b] | No | No | Yes[39] | Yes[39] | Yes[39] | Yes[39] |
| Premium games included | No | No | Yes | Yes | Yes | Yes |
| HomeGroup support | Join only | Join only | Create or join | Create or join | Create or join | Create or join |
| Back up to network with Backup and Restore Center[40] | No | No | No | Yes | Yes | Yes |
| Act as host for Remote Desktop Services | No | No | No | Yes | Yes | Yes |
| Dynamic disks[41] | No | No | No | Yes | Yes | Yes |
| Encrypting File System | No | No | No | Yes | Yes | Yes |
| Location-aware printing | No | No | No | Yes | Yes | Yes |
| Presentation mode | No | No | No | Yes | Yes | Yes |
| Group Policy[42] | No | No | No | Yes | Yes | Yes |
| Offline files and folder redirection[42] | No | No | No | Yes | Yes | Yes |
| Windows Server domain joining | No | No | No | Yes | Yes | Yes |
| Windows XP Mode[c] | No | No | No | Yes | Yes | Yes |
| Software restriction policies | No | No | No | Yes | Yes | Yes |
| Remote administration tools | No | No | No | Yes | Yes | Yes |
| Active Directory Lightweight Directory Services (AD LDS)[d] | No | No | No | Yes | Yes | Yes |
| AppLocker | No | No | No | Create policies, but cannot enforce | Create and enforce policies | Create and enforce policies |
| Aero glass remoting[43][44] | No | No | No | No | Yes | Yes |
| Windows Media Player multimedia redirection[44] | No | No | No | No | Yes[39] | Yes[39] |
| Audio recording over Remote Desktop Connection[44] | No | No | No | No | Yes | Yes |
| Multi-display Remote Desktop Connection[44] | No | No | No | No | Yes | Yes |
| Enterprise search scopes[42]:130 | No | No | No | No | Yes | Yes |
| Federated search[45] | No | No | No | No | Yes | Yes |
| BitLocker Drive Encryption | No | No | No | No | Yes | Yes |
| BranchCache Distributed Cache | No | No | No | No | Yes | Yes |
| DirectAccess | No | No | No | No | Yes | Yes |
| Subsystem for Unix-based Applications | No | No | No | No | Yes | Yes |
| Supports Multilingual User Interface packages | No | No | No | No | Yes | Yes |
| Virtual desktop infrastructure (VDI) enhancements[42]:130 | No | No | No | No | Yes | Yes |
| Virtual desktop infrastructure (VDI) licensed[46] | No | No | No | No | Yes | Yes |
| VHD booting | No | No | No | No | Yes | Yes |
| Switching between any of the 37 available languages[47] | No | No | No | No | Yes[48] | Yes |
| Starter | Home Basic | Home Premium | Professional | Enterprise | Ultimate |
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