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My harddrive, is not recognized and doesn't seem to boot.

Here is a video:

What is that and how can I solve my problem?

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I was curious at work so i took apart a hard drive with the same problem. That little black thing moving to the left of the read/write arm, that is a lock that keeps the arm from moving. if you push it so that it releases the lock it will release the arm and it can move again.

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Would you please make a screen, as I don't know exactly what you mean by that. – Peter Mar 7 '13 at 20:52
Move the black arm aside but be very careful as to not touch the disk, i have linked a picture with a description this arm is designed to use the Air pressure generated from the spinning disk to release it self, if the cover is off it will not release so you have to do it manually. – Eryper Mar 8 '13 at 19:05
Hello Eryper, this method sounds like a solution. But when I move it aside, it won't boot. The arm moves a little further then before, but still no booting made. – Peter Mar 10 '13 at 17:35
This video was done, after my last comment: It shows, that even if the arm moves free, it still does not boot. – Peter Mar 10 '13 at 17:48
I was afraid that it wasn't the stuck arm causing it. Now we need to go into more detailed hard drive troubleshooting. Do you have a external drive reader? if not can you plug the drive into another PC as a Secondary drive to see if windows can pick it up as a additional internal disk. If so then you need to run a check disk on that drive. If the check disk does not resolve the boot problem then you need to perform either a windows boot file repair or a complete windows install, both can be chosen when booting from a Windows Install disk. Keep me updated. – Eryper Mar 12 '13 at 22:34

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