ECC6.0 installation error

When I installing ECC 6.0, it through me an error  code 103 at the 19 phase (Import ABAP), guys this error is really piss me off, and I tried Goggling for help, even though it can’t fix it but help me to think more in depth on this error and finally I found the problem is at lack Physical /Virtual memory. Then I just clear it by using Disk Cleanup and then I press retry button to continue the installation process and it goes smooth and finally installation of ECC6.0 is successfully installed.