Can someone please help me.I had 5 drives on my computer and now 3 are gone.

Which ones are missing? Presumably you still have C:? The missing ones might be A:, which is the floppy drive ..... or perhaps a "higher" letter such as E: or F:, which might be removable USB drives, camera memory card drives, etc. These would be missing if they were unplugged!

If you are missing CD or DVD drives, we can tell you how to remove the drivers from Windows so that it automatically "discovers" them again.

Please advise which drive letters have gone and what types of drives they are and we'll help further.

and of course, if you did unplug your drives such as CDRoms and such, you might have tempered with the jumper or the cables which might make this happen. unlikely but still possible.