Re: ME3 PC - Crash/hard lock going into Engineering and Cargo Bay
To actually document my steps of how to nuke your Origin folders (since this bug happened to me again! what the hell?):
1. Enable hidden items in Windows Explorer
2. Navigate to C:\ProgramData\Origin.
3. Delete everything in this Origin folder EXCEPT LocalContent
4. Enter LocalContent, then delete the folder for Mass Effect Legendary Edition
5. Navigate to C:\Users\[Your Username]\AppData.
6. Enter Roaming, then delete the Origin folder.
7. Go up a level to AppData, then enter Local.
8. Delete the Origin folder in there, too.
9. Restart your PC.
This has fixed my issue with the crash/lock twice now. I have no idea why it gets messed up to the point where it requires this solution, but it does work (at least for me). YMMV. If Steam or Origin says it found local data newer than what's in your cloud saves, upload the local data.