When I starting VMware on Windows Vista, it become unresponsive or hang for a long long… time. But this situation not occurred on Windows XP. I had tried many times on Vista but it still like that (hang), until I found an article that had information that actually solved the problem.

The solutions in my situation are was to set the host settings such that VMware did not allow swapping out the guest but rather kept it in RAM. You will find the setting under menu item Host->Settings, over on the Memory tab. Be sure to set aside the maximum you will ever want to use concurrently. I used an extra 2120MB* (for starting oracle apps R12) but you can set the memory to 1024MB / 768MB or maybe less (just want to staring VMware). Then, and this is the most important part, select the option to Fit all virtual machine memory into reserved host RAM which is not the default. That is really the core of the solution, once you have enough memory allocated. Incidentally, VMware will tell you if you didn’t give it enough memory when you try to start a VM that pushes it over the limit.

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