Is my external hard drive powerful enough to run my macbook without any working internal harddrive?

A couple months ago my laptop suffered a crippling blow to its internal HD. I assessed the problem and fixed it by installing my software disc to a 500 gb WD external HD and worked with it this way for about a month. Now the same has happened with the external HD and I can not access my Macbook. My question is if I shell out for a new internal hard drive will it hold the same fate? or was the external WD Hard drive device just not powerfull enough to run a computer?

Hi ..
Several things to try ..
Try a different USB cable.
Try restarting your Mac.
Try Resetting your Mac's PRAM and NVRAM

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William G 42 wrote:
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mjunder Hong Kong
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To be a parrot,.......REMOVE the WD garbageware.
Western Digital warned its users about its OWN software couple months ago.
Remove ANY and ALL WD software products.

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I am embarrassed how simple that was. I did warn you that I'm technologically challenged; I'm pretty sure that proved it.
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Hi rkaufmann--
Thanks for the response. I can say with confidence that that is not the issue. I have at least 8 of these same WD external portable drives that are powered through their USB 3.0 cables, and I have never had problems with any of them. Sometimes I connect them directly to my computer, and sometimes I use a powered hub. Either way they work fine. The drives with their own power source do not suit my needs.
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