Cannot install any editors, not even the old one I just uninstalled

I got back after a few years to try to make some games. I could not install the latest ones so I deleted the old version I had to see if it works. Nope, now I lost all editors. I have so far tried restarting the PC, turning off windows defender and running unity hub as admin. None of these works. I tried to download it from [unity.com](http://unity.com) but it took me to [unity.cn](http://unity.cn) apparently since I am in Hong Kong and clearly speaks Chinese. I used translation to navigate and the Chinese version of Unity is different from ours. Any helps are appreciated