| Version | Limit in 32-bit Windows | Limit in 64-bit Windows | ||
| Windows Vista Ultimate | 4 GB | 128 GB | ||
| Windows Vista Enterprise | 4 GB | 128 GB | ||
| Windows Vista Business | 4 GB | 128 GB | ||
| Windows Vista Home Premium | 4 GB | 16 GB | ||
| Windows Vista Home Basic | 4 GB | 8 GB | ||
| Windows Vista Starter | 1 GB | N/A |
Source:
http://msdn.microsoft.com/en-us/library/aa366778
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