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Windows 7: the famous error 38

06 Oct 2011   #11

Windows 7 Ultimate SP1 64-Bit

Can you think of any device you used to have plugged into a USB port, but now no longer use?

If so, go into Device Manager and click the View tab and choose View Hidden Devices then uninstall any old devices that you no longer use.

Failing that, download and install the free version of CCleaner then run it to clean up the system registry.

IMPORTANT: Please create a system restore point before you use CCleaner.

My System SpecsSystem Spec
07 Oct 2011   #12


I have no old devices and pc registry is already clean, cache and other things too. The thing is that this error only happens for storage devices such as usb pen drives and other bigger external hard drives, while usb device like mouse and keyboard have no problems even when unplugging and plugging again.
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07 Oct 2011   #13

Windows 7 Ultimate SP1 64-Bit

In that case, I'm out of ideas.

With a bit of luck, someone else may have an answer.
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07 Oct 2011   #14

Windows 7 & Windows Vista Ultimate

Hi, natostanco.

You could try this Microsoft Fix it solution to see if it solves your problem: Hardware devices are not working or are not detected in Windows
My System SpecsSystem Spec
06 Nov 2016   #15

32bit Windows 7
for windows 7(at least for me success)

i have problem with code 38 too, the way i solve it is: right click at my computer then click Properties then click device manager(at left bar) then, at lowest you'll see universal bus series then i uninstal: 1.Generic USB Hub and 2.USB Root Hub. then restart, after that computer will automatic install the missing driver, then your USB is work (code 38 gone!!)

-i dont know if it will success for you or not but atleast that what i do and i success, and last do at your own risk (i just try contribute to help) ^^
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06 Nov 2016   #16
Microsoft MVP

Windows 7 Ult. x64

Holy Thread Revival Batman!
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 the famous error 38

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