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@troyfontaine
Created February 23, 2020 23:44
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How to stop Windows 10 Continuous Prompts to Associate a Viewer for PDF files

How to stop Windows 10 Continuous Prompts to associate a Viewer for PDF Files

If Windows 10 keeps prompting you to associate an application to view PDF files when you double click to open them, try deleting the following registry keys and rebooting. This worked for me.

  1. Open regedit as an administrator
  2. Navigate to Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.pdf and delete the .pdf key
  3. Navigate to Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\FileAssociations\ProgIds and delete the REG_DWORD called _.pdf
  4. Reboot

This reset the default to Microsoft Edge and then allowed me to change the default to Adobe Reader.

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