How to Enable Blocked USB Ports on Windows 7, Vista and XP With Registry Trick

Written By Sam on 31 July 2010
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There are many situations where an Admin might block the access to USB Ports on Windows 7, Vista and XP computers. USB Ports are usually blocked in Companies, Colleges, Schools and other places where the Admin want to restrict the users from installing Software from USB Drives. Though this is really a very good method to prevent systems from Malware attack, there might me some needs where you need to require an USB port to charge your iPhone or an MP4 player or a Camera. In these situations you can perform a simple registry hack to enable USB Ports. The below detailed simple procedure will allow you to re-enable blocked USB Ports on Windows 7, Vista and XP computers.

Procedure to Enable Blocked USB Ports on Windows

  • Click Start on Your Windows Computer
  • In the Search field or from RUN, type regedit and press Enter to open Registry Editor
  • Now navigate to the following registry key: HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/USBSTOR
  • In the right-pane find the entry named “Start” and double click it to open.
  • Now change the value of the key from “4” to “3”.
  • Finally click OK and restart the computer for the changes to take effect.

Once you are done with the above registry modifications you will be able to access blocked USB Ports at your workplace or college. If you want to revert back the changes then just rollback the value from “3” to “4”.

One Response to “How to Enable Blocked USB Ports on Windows 7, Vista and XP With Registry Trick”

  1. USB storagedivice do’nt work.

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