unable to launch Lightroom, no file, no Defaultozurl override

Hi ​@ddalasio@msn.com,

I'm sorry you're running into this. I understand how frustrating it is when you can't access a tool you're paying for. The "DefaultOzUrl Override module not found" and "no field package preload" errors point to a corrupted component in the Creative Cloud packaging layer, not just Lightroom itself. If the clean reinstall steps already suggested above don't resolve it, here are additional targeted actions:

1. Run the Adobe Creative Cloud Cleaner Tool: This goes deeper than a standard uninstall, it removes leftover registry entries and broken packaging state that a normal uninstall can miss:

• Close all Adobe apps and end any Adobe background processes in Task Manager (look for CCXProcess, CoreSync, Adobe Desktop Service, AdobeIPCBroker)
• Download the Creative Cloud Cleaner Tool
• Run it as Administrator
• Select both Lightroom and Creative Cloud Desktop for cleaning
• Restart your computer, then reinstall Creative Cloud Desktop first, sign in, and install Lightroom from there

2. Clear the OOBE licensing/package cache: The "package preload" error often originates from a corrupted OOBE folder. Before reinstalling:

• Navigate to: C:\Users\<your username>\AppData\Local\Adobe\
• Rename the folder OOBE to OOBE_old
• Restart your computer and relaunch Creative Cloud

3. Repair Microsoft Visual C++ Redistributables (Windows): Damaged VC++ runtimes can cause module-loading failures at launch:

• Go to Settings > Apps > Installed Apps
• Find all entries for Microsoft Visual C++ 2015–2022 Redistributable (both x64 and x86)
• Click Modify > Repair on each one
• Restart your computer and try launching Lightroom

If you can let me know your operating system version (Windows 10/11 and build number) and whether this is Lightroom (cloud-based) or Lightroom Classic.

We'll get this sorted for you.

Best regards,
Anshul Saini