Well, that's a problem you probably want to fix at the root. Try buying more random access memory (RAM) or get AVG free and run a scan. CCleaner also does a wonderous job of erasing random junk bogging down your computer. It is also free, just google it.
Best of luck.
NO JUST UNPLUGGING IS VERY BAD IDEA
causes dead hard drives, fried mother boards, and all sorts of hardware failure. If worst comes to worst hold down the power button on the front. Its still rough on the computer, but slightly less than yanking the power cord.How to unlock my iPod Nano when it's frozen?
When that happens I just unplug my computer and reboot you'll lose anything you were working on but it's faster then waiting.ipod frozen
Its really not a good idea to just up and un-plug your PC.
Try holding the power button for about 6-8 seconds.
If it does this allot you should think about getting mor ram or cleaning your hard disk of the un-used junk