usb device not recognized windows 8

1:50

2:26

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1:57

3:31

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2:51

3:11

1:01

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3:26

2:04

کوتاه

3:44

1:36

3:04

9:57

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31:40

45:26

32:13

27:53

14:47

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40:06

1:45:12

3:06

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1:02

6:58

2:45

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22:14

1:36:19

3:14