6GB installed 3.25GB usable on Windows 7 32-bit
if you are seeing something like above then the issue is with OS version that you have.The following table specifies the limits on physical memory for the different versions of Windows 7.
| Version | Limit in 32-bit Windows | Limit in 64-bit Windows |
| Windows 7 Ultimate | 4 GB | 192 GB |
| Windows 7 Enterprise | 4 GB | 192 GB |
| Windows 7 Professional | 4 GB | 192 GB |
| Windows 7 Home Premium | 4 GB | 16 GB |
| Windows 7 Home Basic | 4 GB | 8 GB |
| Windows 7 Starter | 2 GB | 2 GB |
For more information about memory limits for Windows releases, click the following link to view
