I forgot to ask what your page file is.
Start -> Right click on Computer -> Properties -> Advanced System Settings -> Takes you to System Properties Window -> Advanced Tab
Select Settings under Performance. Select Advanced Tab. Under Virtual memory, select Change.
The maximum size in MB should be 1.5 times your total RAM, so if 8GB, then it should be 12GB. Select Custom size and place that amount in Maximum size. It is best if you move the page file to a different partition than the C:\drive.