Illustrator freeze at launch after opening an old version file


Hi everyone. I recently updated it to 26.0.3 and It worked fine but after opening the file it started freezing for no reason. I don't know why and it always pops up com.AdobeSplashKit.GraphicWindowClass. But when I use administrator to open Illustrator, It works and runs as smoothly as butter.
Have tried the following and nothing works.
- Updated GPU Drive
- Restarted Computer
- Changed AppData\Roaming\Adobe\Adobe Illustrator 26 Settings to Adobe Illustrator 26 Settings_old
- Reinstalled and uninstalled
- Used Adobe Creative Cloud Cleaner tool
Honestly frustrated and really do not know what's left to do. Please help me.
