Right click My Computer, click properties, click Advanced tab, under performance click settings. Click Advanced tab, click change, make sure "System managed size" is chosen, click ok and reboot. While there are other ways to work it, for the average user, letting Windows determine your page file size is probably best. This also requires you to have a decent amount of drive space available (can be up to 2.5GB depending on situation) Right click on your task bar, click Task Manager. Click the performance tab and leave it open while you do things. watch the graphs to see if anything maxes out while working. Check the Event Viewer System log (Control Panel > Admin tools > Event Viewer > System) for any significant errors, though there may be none. KISS and start with simple things first.