It first shows "can't detect my installation folder" and asked me to copy my game to user\***\wc3. I did that.
Then it complains about my version.
We detected your installation at C:\Users\K9\wc3, but it doesn't seem to be on the 1.30.1 patch.
We recommend creating a backup of your 1.30.1 WC3 installation in case you want to try the 1.30.2 patch, or in case you accidentally upgrade.
If you copy your 1.30.1 WC3 installation to C:\Users\K9\wc3, then we'll automatically detect it.
And If that version is not supported, then I can't get back to previous version anyway. Is there any copy I could use?
Thanks.