Max memory limits for 64-bit Windows 7

While the maximum RAM limit for 32-bit Windows 7 editions is 4GB, when it comes to the 64-bit editions, the amount of memory that the OS can address depends on which edition you are running.
Here are the upper RAM limits for the different editions of Windows 7:
- Starter: 8GB
 - Home Basic: 8GB
 - Home Premium: 16GB
 - Professional: 192GB
 - Enterprise: 192GB
 - Ultimate: 192GB
 
