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Windows 7: My pc not recognising USB flash drives

28 Dec 2011   #1
Muhsin

Windows 7 Home 32 bit
 
 
My pc not recognising USB flash drives

Ok so here it is, my pc is not able to detect usb flash drives.I searched on google and saw some answer about looking into disk management, but it does not show up here either.

I have tried Pendrives, Ipod and PSP.Neither works.The lights in my pen drives light up so its definitely not a problem with the hardware.The weird thing is that i can connect to the internet with my USB DSL.However i noticed that if i reboot my DSL, i have to restart pc again because it wont recognise the USB DSL router.

I have tried inserting my USB flash drives before i start my pc like the router but nothing.It doesnt work.I have also checked in BIOS, and they are all enabled.Im running out of ideas and i cant backup anything in my pendrive.


My System SpecsSystem Spec
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28 Dec 2011   #2
patio

Vista Ultimate X64/ Windows 7 Dual-boot
 
 

Are these the front USB ports ? ?
Some are notoriously under-powered while others are never even connected.
My System SpecsSystem Spec
28 Dec 2011   #3
Muhsin

Windows 7 Home 32 bit
 
 

No i tried in all 4 back ports but nothing.My keyboard and mouse works perfectly tho
My System SpecsSystem Spec
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28 Dec 2011   #4
The Howling Wolves

Windows 7 Home Premium 64bit
 
 

Try looking in My Computer to see if USB is showing.
My pc not recognising USB flash drives-2011-12-28_0849.png


My System SpecsSystem Spec
28 Dec 2011   #5
Brink

64-bit Windows 10 Pro
 
 

Hello Muhsin, and welcome to Seven Forums.

You might also check using the tutorial below to see if you may have mistakenly set Windows 7 to not allow the connection of USB storage devices.

USB Storage Device - Enable or Disable Connecting

Hope this helps,
Shawn
My System SpecsSystem Spec
28 Dec 2011   #6
Muhsin

Windows 7 Home 32 bit
 
 

No thats the problem, i dont see it

EDIT: Didnt see Shawn's post, it solved my problem.Thanks a lot really helped me
My System SpecsSystem Spec
29 Dec 2011   #7
Muhsin

Windows 7 Home 32 bit
 
 

Ok, it worked for one day, but when I restarted my pc today it do the same thing again.And using the registry wont work anymore.Any other fixes for this?
My System SpecsSystem Spec
29 Dec 2011   #8
JimLewandowski

 
 

Go to EVENT VIEWER. Left hand side, Application -> Microsoft-> Windows -> DriverFrameworks-Usermode -> Operational.

Those are the power events for connected USB devices. Scroll through and see what info it provides.
My System SpecsSystem Spec
29 Dec 2011   #9
Muhsin

Windows 7 Home 32 bit
 
 

They all say "Driver Manager service started successfully"
My System SpecsSystem Spec
29 Dec 2011   #10
JimLewandowski

 
 

Quote   Quote: Originally Posted by Muhsin View Post
They all say "Driver Manager service started successfully"
There should be a half dozen events for each connection/disconnection. So, no errors and all looks fine?
My System SpecsSystem Spec
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 My pc not recognising USB flash drives




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