Yes I have even tried that as well, and it does the same thing. It gets stuck at Main assets 103 at 57%
This should usually fix it, have you run a chkdsk c: /f
Please go to www.swtor.com/download, download the latest launcher setup file and run the setup over the current installation. After this please remove and re-add firewall and antivirus exceptions for SWTOR.exe and Launcher.exe.
Then, ensuring that you have the launcher closed and gone from your Processes list in Task Manager, delete the following files in the client installation folder and sub-folders:
- "Patch" folder
- "Patcher_-1toXX" or similar folders
- "assets_swtor_XXX_XXX" or similar folders (do not delete the folder named "Assets")
- "Patcher.version" file
- "Launcher.settings" file
- "Launcher.exe" file
Then run the Fixlauncher.exe found in the client installation folder.
Once this has completed, please restart your computer in Safe Mode with Networking, and check if you are able get the launcher to start patching.
Please come back to us with your Launcher log if the issue remains.
I hope this helps!