I had to report problems:
The installation environment:
xp 64bit sp2 with ie8 and all last update,but the ie8 browser directory has been deleted. Regional and language options set to chinese,internet properties security all set to high.Disconnect the network.
The hardware environment:
amd athlon64 dual core cpu 4000+,amd rs780G+sb700,2G ddr2 sdram.
Install the ver avast free antivirus9.0.2011:
2.selected custom installation. Did not selected google brower or tools.the avast add tools only install Browser protection.
3.It always took a long time to display next pages.After finish setup,the taskbar icon and avast Interface display,work ok.From the beginning to the end, a total of 6 minutes. Better than before.
When i unstall microsoft tcp/ip version6 from connection properties,The installation process smoothly.