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How do I fix my HP scanner’s ‘connection errors’ on my Windows computer?

Castle Ink hopes following these two sets of instructions will solve your HP scanner’s errors. 


Fix troubleshoot hardware problems:

  1. Type ‘cmd’ in the Windows search bar.
  2. Select ‘Run as Administrator.’
  3. Copy and paste ‘msdt.exe -id DeviceDiagnostic.’ This is a reliable Microsoft support diagnostic tool.
  4. Click ‘next.’
  5. Follow the onscreen instructions.

Run system file checker: 

  1. Type ‘cmd’ in the Windows search bar.
  2. Select ‘Run as Administrator.’
  3. In the command prompt, type ‘stf/scannow.’ 
  4. Wait until ‘Verification is 100% Complete.’
  5. Once complete, type ‘exit’ in the command prompt.
  6. Press enter to close the window. 

About Jackie Elward

Jackie Elward is a Research Analyst covering the printer industry with a focus on diagnosing and solving common printer issues. Her expertise centers around mobile printing and advising consumers on the use of bluetooth, configuring Android and iOS devices to print remotely, and more. She's currently pursing a degree at Babson College.