How do I reboot my Dell Inspiron without the disk?

I know I have done it before, I just can't seem to find the instructions that I used last time to reboot my Dell Inspiron 1501 without using a reboot disk... Can anybody either tell me how to do it or give me a link to the dell site with the instructions?How do I reboot my Dell Inspiron without the disk?I think you will find your answer at the link below.

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