How to fix error 2502 when installing a driver

This error can occur when installing the Gryphon QR code scanner driver.

This is how you can fix it.

 

1. First execute these two commands in Command Prompt.

  • msiexec /unreg
  • msiexec /regserver

 

2. Then restart explorer in Administrator mode:

  • Open Task Manager
  • Go to the details tab
  • Find explorer.exe and kill it
  • Still in Task Manager, click File > Run new task
  • Type explorer.exe and tick the checkbox for Create this task with adminisrative privileges
  • Click OK

 

3. Then try to run the installer again. It should work now!

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