Managing computer memory When your computer is running low on RAM and more is needed immediately, Windows uses hard drive space to simulate system RAM. This is known as virtual memory, and is often called the paging file. This is similar to the UNIX swapfile. The default size of the virtual memory pagefile (named pagefile.sys) created during installation is 1.5 times the amount of RAM on your computer.
If your friend looks in Help there is more info.
I'm not a gaming expert, but 256 Ram is a little low.
See which are the biggest resource drainers running in b/g in Task manager and disable. It may be some games require 3d graphics card or more memory allocated to onboard card (which you can change in bios for some mobos).
Both DVD- and DVD+ have their advantages and disadvantages. For example DVD+ is slightly faster with some drives offering an 8x burn rate! You can read more on this subject if you click here and you can read a comparison and review of different DVD writers if you click here
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