Well, the problem is simple. I just downloaded avast! free version then began to install it and it stucked at Google Chrome installation window. It says it’s installing Google Chrome but my hard drive were not working. I think the program is downloading Chrome but it failed. I just noticed there is no downloading speed of my system via a network monitor, it means nothing to be downloaded.
I don’t know the reason, but I guess it just failed connecting to Google’s server. No matter how good Google’s network is. I’m in China, our country has internet censorship, it results in many cases we would fail to connect to which outside of China mainland. I think maybe it is the reason, but maybe others, too. Like turning off my network intensionally.
Now the problem is: I can’t skip the Chrome installation window, can’t cancel the whole installation, either. I waited a few minutes but the installation never ends. Until I ended the Google updating process, It finally goes to the later installation steps and I finally have it installed.