I downloaded winfxsetup.exe from Microsoft official. After running winfxsetup.exe, I started to download the installation file. But when it reaches 22m, I will be prompted that the installation cannot continue. After several attempts, the problem persists. At last, Google found that other people encountered the same problem. Cause of problem not found
You can download this file now: http://download.microsoft.com/download/8/A/5/8A55319C-8A7B-4108-BD00-9EAD7E4F582A/winfxrc.exe
You can also get a faster installation path :)
P.s. Unfortunately, we encountered a new problem!
CheckIn the % Temp % \ dd_wcf_rechloroform *. txt log file, if "the name has been used as the service name or service display name" appears, perform the following operations:
Enter SC Delete "infocard service" in the command line"
After the service is deleted, a message is displayed, indicating that the service is successfully deleted. Then run winfxrc.exe again. Pray that there will be no new problems.
P.s. Fortunately, the installation is successful and you will be given a link to the WCF-related hotfix. Let's check it out. :)