USB 2.0 port no longer recognizes ext. HD; USB 3.0 seems fine W510

Have had several BSODs in last few days. Two of most recent referred to nusb3xhc.sys
Other symptoms: I have 3 WesternDigital 500GB ext. USB 2.0 HDs none of which are being recognized even when plugging directly in to laptop USB port rather than USB hub I usually use. Same USB port will show a small thumb drive. USB 3.0 laptop port still works. While the WD HDs are all older, worked several days ago but now never show up in Windows Explorer and the tray icon for USB never shows them as I typically click on the latter to eject an ext. USB HD.
Recent changes to laptop:
1) 6.1.2014 installed MS OneDrive (and also on tablet). version 17.0.4041.0512
2) Control Panel add/remove programs shows that Dropbox installed version 2.8.2 just before OneDrive
3) Subsequent to above I did routine Windows update of Important items with no problems. However for several years since about IE 9 or perhaps 10, I have been unable to get IE to install and work, and have been using Chrome for years. I mention this to give fuller picture, but doubt that it is related to current issue.
4) Aside from typical routine updates e.g. Java, Bitdefender antivirus I have not intentionally installed any other software recently.
============
I have barely begun using MS OneDrive so am happy to uninstall it, or go to restore point prior to its installation. BSOD prior to this might have occurred 1 or 2x per year.
I'm pretty good at following directions if they are complete e.g. need full path if you want me to find something on my HD.
Lenovo website for machine type 4318CTO running Windows 7 Pro 64-bit indicates that driver version for USB 3.0 dated 1/22/2010 versin 1.0.19.0 is up to date and that it is NEC device. Device Manager also says is up to date. There is one USB 3.0 port on rear of laptop and two USB 2.0 on side. HP website shows more recent NEC USB 3.0 driver dated 9/16/2011 version 2.0.32.0
Thanks for your knowledge, skill, and help.

I always thought that high-speed USB was USB 1.1. I thought that USB 2.0 was full-speed. But my iMac Core 2 Duo has USB 2.0 (I'm sure) and it says that my iMac has a USB High-speed bus.
Your PowerBook G4 might need service, go to your local Apple Store and see someone there about it. I'm pretty sure that you have a hardware problem.
Steps:
1. Try connecting another USB 2.0 device to that same port. If the device works you have a problem with your iPod. (This is a long shot.) If this happens you should reinstall iPod software.
2. Try reinstalling iTunes.
3. Try calling AppleCare technical support.
4. Try reinstalling Mac OS X. (If AppleCare hasn't told you do this already.)
5. You have a hardware problem. Go to an Apple Store to get it fixed.

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Hi jesusbet,
Thanks for visiting Apple Support Communities.
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USB 2.0 port no longer recognizes ext. HD; USB 3.0 seems fine W510

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