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Laptop not detecting USB

Laptop not detecting USB. Tried to connect in all ports but still problem is same. Can anybody advise

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My Lenovo B50-30 does not read any USB 2.0 in windows 8 nor windows 7. When I connect my flash, it does not even indicate that something is connected. What do I do? Please help. I cannot do anything with the laptop without USB. I need to get to the internet only with USB internet key

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My Lenovo B50-30 does not read any USB 2.0 in windows 10. tried flash drive, keyboard, mouse, usb hub, all are same no change, BIOS are ok. device manger usb diver is working.

what will I do now?

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My Lenovo B50 Read USB Key board and Mouse. But Does Not Read My Other Device. Example For.....External HDD,Printer,and other Device. I See BIOS are ok . device manger USB diver is working.

what will I do now?

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17 JAN 2018 (WED)

Our Lenono G50 after an update isn't detecting the USB 2.0 on right side of computer. Lenovo doesn't appear to offer an solution. The BIOS is up to date.

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Follow this link to a previous question with helpful troubleshooting methods:

Why are my USB ports not working?

If that doesn't work you can try these methods from an article on the Microsoft support page

http://support.microsoft.com/kb/817900

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Hi did you tried connecting to a different PC? Doing this will confirm whether USB ports or USB itself is damaged!!! Chances are less if all ports are bad at same time. Just check and revert.

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1)Your Driver Soft Ware Not installed Properly,

2)Your Laptop mother Board Chip set Not Work Properly.

3) USB Controller Bad. Please Check This Item.

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hi

go to website of lenovo and download USP driver.

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