KASPERSKY - porte usb non riconosciute - errore 41

Lost USB Functionality After Upgrade to Kaspersky Software Versions 2010 or 2011

Affected Products:

  • Anti-Virus 2010
  • Internet Security 2010
  • Kaspersky Anti-Virus 2011
  • Kaspersky Internet Security 2011

Topics: Installation and Uninstallation, Troubleshooting

Article ID: 


Knowledge Base Article: 

In certain cases, upgrading over the top of Kaspersky 2009 or 2010 versions may remove functionality of USB ports. To resolve this issue, please use one of the options below:

Option #1

Use a PS/2 mouse and keyboard to control the computer and run a registry fix.

To fix the system using PS/2 mouse and keyboard, you will need either one with a round plug. These are more common on older computers and desktops. Alternatively, you can use a USB to PS/2 adapter.

  1. Plug in the PS/2 mouse and keyboard when the computer is off.
  2. Turn on the computer and download our registry file:
    1. Save this file to your Desktop.
  3. Right-click on the file USBRestore.zip and choose Extract, then Finish.
  4. A window with the registry file will appear. Please double-click on it.
  5. Press Yes to allow the file to be added when prompted.
  6. Restart your computer and USB will be working again.

Option #2

Use the Kaspersky Removal Tool to automatically remove the incorrect entries from the registry.

  1. Download the Kaspersky Removal Tool from the following link to your Desktop: Kavremover.exe
  2. To run the Kaspersky Removal Tool, please double click the file you just downloaded on your Desktop.
  3. When the application opens, please select Kaspersky Antivirus/Internet Security 2009 in the drop-down list.
    1. If you do not see this option, fill in the Security Code displayed and click "Remove" to uninstall the current installed version first, then reboot the computer, run this Removal Tool again, then choose Kaspersky Antivirus/Internet Security 2009 from the drop-down list.
  4. Fill in the Security Code that is displayed
  5. Click Remove
  6. Reboot the Computer if/when prompted.
  7. Upon reboot, the USB should be repaired.

Option #3

Use a special edition of our Kaspersky Rescue Disk to remove the incorrect entries from the registry.
**(This step is not recommended for PC's with RAID hard drive configurations.)

If you do not have PS/2 ports on your computer or do not have PS/2 mice or keyboards available, you can download and burn a special edition of the Kaspersky Rescue Disk to resolve the problem. This should allow you to change the incorrect registry settings to allow the USB ports to work again in Windows.

  1. Download and Burn the Kaspersky Rescue Disk 10 special USB Recovery edition
    1. Download from this link:
    2. For information on how to Create and Start your PC with KRD 10 open this article:
    3. For an in-depth PDF file on KRD 10:
  2. Start the affected computer with the special USB Recovery Rescue Disk edition
    1. Put the CD you burned with the KRD in the top drive of the computer and restart.
    2. You should see a prompt to press any key to start the Kaspersky Rescue Disk.
      1. If you have trouble, see article ID 2072: http://support.kasperskyamericas.com/knowledge-base-article/2072#trouble
    3. Run the "usbrecover" command in the Terminal
      1. When the Kaspersky Rescue Disk main window appears, click Exit in the lower right.

      2. Click Yes to confirm closing the window.
      3. Open the Start Menu and go to Terminal.

      4. If you cannot see the Start Menu, right-click on the background to access it via a popup menu.
      5. Type in the command, all lower case: usbrecover

      6. Press Enter.
      7. If the script is successful, you should see the message: "Done! You can now reboot your PC and start Windows."

      8. Close the terminal window.
      9. Restart by going into the Start Menu and choosing Restart Computer.
      10. Please Remove the CD from your CD Drive, as this may cause issues booting back into Windows.