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ON1 wont start.

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4 comments

  • Brian Lawson Community moderator

    It is very unlikely that installing some other software has caused Photo RAW to quit working. Most likely it is a matter of coincidental timing that the program data became corrupt around the same time.

    Try trashing your user data for the program. Trash the folder C:\Users\<user>\AppData\Roaming\ON1\*2022*.

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  • Zachary Pollak

    Thanks for that. Tired, but didn't work :(

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  • Brian Lawson Community moderator

    What exactly does happen when you try to launch the program? I'm trying to find my copy of a script I had for manually removing all traces of the program from your system (except the edits saved in your .on1 files) and I'll post it here as soon as I can find it again.

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  • Brian Lawson Community moderator

    Here's my process for manually removing the program from your system. Your edits will be safe as long as you are using the .on1 sidecar files.

    1. Uninstall via the Add/Remove Programs
    2. Remove the C:\Program Files\ON1\ON1 Photo RAW 202x directory
    3. Remove the directories with "202x" in their names located in C:\ProgramData\ON1
    4. Remove the directories with "202x" in their names located in C:\Users\<user>\AppData\Roaming\ON1
    5. Remove this directory C:\Users\<user>\AppData\Roaming\Adobe\Lightroom\Modules\ON1 Photo RAW 202x.lrplugin
    6. Remove this directory C:\Users\<user>\AppData\Roaming\Adobe\Lightroom\Modules\ON1 Resize 202x-suite.lrplugin
    7. Remove the 202x files in this directory C:\Users\<user>\AppData\Roaming\Adobe\Lightroom\External Editor Presets
    8. Remove the 202x files in this directory C:\Program Files\Common Files\Adobe\Plug-Ins\CC

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