Abaqus 32/64 bit installation problem

Hello All,

Recently, I have started facing problems with memory allocation. I realized that problems are due to the version of Abaqus that is installed on my machine (whether 32/64 bit).

I am NOT sure about which Abaqus installation is there on my machine. Is there any way I can check if it is 32-bit or 64-bit?

Since Abaqus does NOT give an option of choosing 32/64 bit at the time of installation, so how can I install 64-bit version manually?

Thanks,