Can viruses make USB flash drives undetectable?

By zzpider
Nov 28, 2008
  1. Have this problem. My USB drive got infected by virus which made most of the files and all of the folders disappear. I know that the files and folders were not deleted and are still in the USB for the drive's used space is still the same. I let my friend disinfect my USB using his NOD32 AV. The problem is after that, my USB won't get detected anymore. It doesn't auto-detect and I can't see the drive in Windows Explorer. I tried several PCs to no avail.

    I have several questions:

    Did deleting the virus make my USB undetectable?
    Is that a virus or a trojan?
    Can I still access my USB and retrieve the files and folders?

    Help anyone?
  2. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

  3. zzpider

    zzpider TS Rookie Topic Starter

    Hi kimsland,

    I tried formatting it following your advice on How to format an unresponsive USB Drive but i can't format it for its still undetected. Is there anyway of manually detecting the USB so that i can proceed with formatting?

    As for the 4th step, there's no folder for StorageDevicePolicies.
  4. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Your friend who disinfected the drive
    Can it run in that computer?
    I want to try to eliminate your computer as the issue, or the drive, whichever !
  5. ascot54

    ascot54 TS Rookie Posts: 87

    i had similar error with my usb flash during my recent encounter with the vundo virus...

    my pc has 2 usb slots on front
    4 on the back ...

    i got a response initially on 1 of the front ones but nowt after that...
    unplugged my flightsim controllers..
    got a response form 1 socket...

    tried in "safe mode".. same response

    please perservere... the usb will pick up at some stage
    without mine, and the help from this forum, my pc would be a big paperweight..
  6. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

  7. zzpider

    zzpider TS Rookie Topic Starter


    My USB can't be detected in my friend's PC anymore.

    I don't have a PC at home so I just use any available PC's at work.

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


    Yeah, we'll persevere!
  8. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Try this (a long shot, that might work)

    Get this and run it with the Flash drive in on the working computer.

    Actually plug your flash drive in when requested by the program


    Member Lookinaround, has suggested that looking in Disk Management (Start >Run > diskmgmt.msc)
    Confirm what drive letters are associated with what device
    USB should always be the last letter after all physical devices, but this can corrupt, when, there are many USB devices, or when Drives have been manually configured, drive letters
  9. zzpider

    zzpider TS Rookie Topic Starter

    I tried Flash Disinfector and it prompted "Done!" but still the USB can't be detected. I also tried Disk Management but I can't see the USB drive there.
Topic Status:
Not open for further replies.

Similar Topics

Add New Comment

You need to be a member to leave a comment. Join thousands of tech enthusiasts and participate.
TechSpot Account You may also...