2017 mail crashes when trying to attach file to email

The good old days of Windows 10's Mail app!

The issue you're experiencing with the Mail app crashing when trying to attach a file to an email in 2017 is likely due to a bug or compatibility issue. Here are a few potential solutions to help you resolve the problem:

  1. Update Windows 10: Ensure your Windows 10 is up-to-date by checking for updates in Settings > Update & Security > Windows Update. Sometimes, updates can resolve compatibility issues.
  2. Reset the Mail app: Try resetting the Mail app to its default settings. To do this, go to Settings > Apps > Mail, and click on the "Reset" button.
  3. Disable and re-enable the Mail app: Sometimes, disabling and re-enabling the Mail app can resolve the issue. Go to Settings > Apps > Mail, and toggle the switch to the "Off" position, then back to "On".
  4. Check for corrupted files: Corrupted files can cause the Mail app to crash. Try deleting any recently attached files or emails that may be causing the issue.
  5. Use the Windows 10 Mail app troubleshooter: Microsoft provides a built-in troubleshooter for the Mail app. To run it, go to Settings > Update & Security > Troubleshoot > Additional troubleshooters > Windows Mail.
  6. Try a different email client: If none of the above solutions work, you can try using a different email client, such as Outlook or Mozilla Thunderbird.
  7. System restore: If you've made recent changes to your system, try performing a system restore to a previous point when the Mail app was working correctly.
  8. Reinstall the Mail app: As a last resort, you can try reinstalling the Mail app. Go to Settings > Apps > Mail, and click on the "Uninstall" button, then reinstall it from the Microsoft Store.

If none of these solutions work, you may want to consider seeking further assistance from Microsoft Support or a Windows 10 forum.