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Can't install new flash drives, but my old one works

flash drive driver

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I have a SanDisk Cruzer 32GB flash drive I use with no problems, have been for 2 years now. However, I bought a generic blue flash drive that doesn't work on my PC, but it works on my wife's and her setup is almost identical to mine. It says it can't find the driver for it & I've tried numerous methods to find it with no luck. I then went out & bought 4 different branded ones & they say the same thing, even tried another SanDisk Cruzer 32GB and it won't work either. So my real problem seems to be that I can't install NEW flash drives. Any ideas? I haven't done any registry or other changes. I can see the new drives in the Device Manager and it has the "yellow triangle" indicating a problem. I can also see it under Devices & Printers, but it shows up under "Unspecified" instead of "Devices". I've tried a number of recommended methods to get the driver to work like deleting it in the Device Manager & reinstalling, but nothing helps including the troubleshoot option in Windows 7.  Any ideas?

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Right click on Computer and select Manage and then Device Manager then View, Show Hidden Devices.  Now look in the right pane for yellow flagged devices.  Right click on one and select properties then click on the Details tab.  Change Property to Hardware IDs.  Click on the top one then right click and copy.  Paste that into a reply.  Repeat for all yellow flagged devices.


Right click on (My) Computer and select Manage (Continue) Then click on the arrow in front of Event Viewer. Next Click on the arrow in front of Windows Logs Right click on System and Clear Log, Clear. Repeat for Application.


Start, All Programs, Accessories then right click on Command Prompt and Run as Administrator.  Then type (with an Enter after each line).

sfc  /scannow

(This will check your critical system files. Does this finish without complaint?  IF it says it couldn't fix everything then:

Copy the next two lines:

findstr  /c:"[SR]"  \windows\logs\cbs\cbs.log  >  %UserProfile%\desktop\junk.txt
notepad %UserProfile%\desktop\junk.txt

Start, All Programs, Accessories, right click on Command Prompt and Run as Administrator, Continue.  Right click and Paste or Edit then Paste and the copied line should appear.
Hit Enter. Copy and paste the text from notepad or if it is too big, just attach the file.)


Insert one of your USB drives.  If it fails then:

1. Please download the Event Viewer Tool by Vino Rosso
and save it to your Desktop:
2. Right-click VEW.exe and Run AS Administrator
3. Under 'Select log to query', select:

* System
4. Under 'Select type to list', select:
* Error
* Warning

Then use the 'Number of events' as follows:

1. Click the radio button for 'Number of events'
Type 20 in the 1 to 20 box
Then click the Run button.
Notepad will open with the output log.

Please post the Output log in your next reply then repeat but select Application.  (Each time you run VEW it overwrites the log so copy the first one to a Reply or rename it before running it a second time.)


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