@Blenderdude said in Opera freeze when startup:

how can i revert whatever i did back to original ?

If you're talking about this:

If you want to start over fresh, you can rename the "Opera GX Stable" folders in both "C:\Users\yourusername\AppData\Roaming\Opera Software" and "C:\Users\yourusername\AppData\Local\Opera Software".

, then you would delete the the new "Opera GX Stable" folders and change the ones you renamed back to "Opera GX Stable".