You can adjust the amount of memory that is allocated to a virtual machine in VMware Player. Here are the steps:
1. The virtual machine must be powered off.
2. Select the VM from the library and select Player > Manage > Virtual Machine Settings:
3. On the Hardware tab, select Memory. On the right side of the screen you will see the Memory panel with information that can help you select the appropriate amount of memory for the virtual machine. The size must be a multiple of 4MB:
4. Power on the virtual machine in order for the changes to take effect.