problems with games

I have a referb sony vaio pcg-61511m laptop, running win7 pro. It lets me install games but every time I try and play them I have the following message

Sorry there is not enough memory to continue.
Please make sure that you have at least 50mb free on your hard drive
and that virtual memory is not disabled.

There is a 500gb hardrive in here and only 54.7gb has been used.
Also virtual memory is disabled.

I have attempted to install Halo, the sims1+4 , rome total war 1+2 assassins creed 2 and a few others.
The sims and rome total war work fine on my pc but not on here.

Any help would be appreciated.

Thank you

 

My friend had similar problem with dota2. In his case problem was google chrome because it uses a lot of memory and he had multiple tabs opened that caused BSOD. Hope this helps you

 

Going to need the full system specs for some one to help you? have you tried turning on virtual memory?

 

Its the Sony VAIO PCG-61511M (VPCEE3Z0E). sorry I should have said this in the first post it has 8gb ram and virual memory is on

 

first i would test your internet speed

http://www.speedtest.net/

then i would go here and see if your laptop will run your games?

http://www.systemrequirementslab.com/cyri

 

Two bits I have highlighted in your post, is the 2nd line a typo?

If not, the first thing you should do is enable Virtual Memory in line with what the error message is telling you and see if that resolves the problem.