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This is confusing me a bit. I've recently set up a new PC at work and installed both TortoiseHg and Paint.NET, as usual. However, for some reason, all shortcuts to TortoiseHg are replaced with Paint.NET's application icon:

enter image description here

Reinstalling either application does not help, uninstalling Paint.NET does.

Clearing the icon cache by removing %LocalAppData%\IconCache.db does not help, either.

Now, all default shortcuts to TortoiseHg are shortcuts to the application itself, not a specific file path (which means I can't even change the icon of the shortcut):

enter image description here

My only guess right now is that perhaps Windows Installer is a bit confused about its application database, but I don't really have an idea how to verify or fix this.

The shortcut (and application icon in the registry) apparently references the icon at %SystemRoot%\Installer\{50AF3472-30AD-42C5-84FF-8A1ACE7CEFBF}\thgIcon.ico which is the correct one. {50AF3472-30AD-42C5-84FF-8A1ACE7CEFBF} is also the product GUID for TortoiseHg in the registry. So it appears that this product is correctly set up, as far as I can tell.

  • What is the icon path of that shortcut? You can get that from Change Icon option in Shortcut tab. – Biswapriyo Aug 15 '19 at 8:27
  • It looks like issue with icon cache. Try to delete this file C:\Users\Joey\AppData\Local\IconCache.db and restart explorer or sign out and sign in. – Biswapriyo Aug 15 '19 at 13:03
  • See if TortoiseHg has an entry in C:\ProgramData\Microsoft\Windows\Start Menu\Programs and if its icon can be changed. – harrymc Aug 15 '19 at 16:45
  • @harrymc: The screenshot of the property window is a shortcut from that exact place. There's also little point (albeit not impossible) for a program installed by MSI to have some shortcuts point to the application and some to a file path, as the latter won't work if the program is not installed. – Joey Aug 16 '19 at 6:48
  • Possible duplicate of Icon Adobe Reader DC on taskbar is wrong – Joey Aug 20 '19 at 8:22
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The workaround posted here did work for this case as well. Originally found that link in the issue thread for TortoiseHg and it seems to be a problem with Windows Installer shortcuts and the default application for icon files.

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