Cannot connect to Data mining

Question

When I connect to <no connection> there is always an error tell me that the connection was rejected.I enable port 2383 already.the error still there.I try to install sql server 2012 trial edition but cannot install there always error No 50000 tell
me that the setup program cannot write xml.
TITLE: SQL Server Setup failure.
SQL Server Setup has encountered the following error:
There was an error generating the XML document.
Error code 0x84B10001.

Answer 1

Hi Somsak,
Based on my research, it is generally caused by the AppData variable is missing from 'HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders'. SQL Server uses the keys under %AppData%\Microsoft\Protect to protect user data.
If the AppData variable is missing or the 'Protect' is missing, the setup will fail to find the keys, and then fail to protect data.
To resolve the issue, please follow these steps:
Click 'Start' > 'Run'
Type 'Regedit'
Go to 'HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders'
Verify 'AppData' is existing. If it is not there, please create a Expandable String Value with name 'AppData', and value '%USERPROFILE%\Application Data'
After that, please re-run the SQL Server steup to complete the installation. And also verify you are running SQL Server setup with an account has administrative privileges.
Additionally, there is an article regarding the protection issue, which may be helpful too:
http://support.microsoft.com/default.aspx?scid=kb%3Ben-us%3B920114
If the above does not solve the problem, please post here the content of the following file:
C:\Program Files\Microsoft SQL Server\110\Setup Bootstrap\Log\Summary.txt
Thanks,
Katherine Xiong
Katherine Xiong
TechNet Community Support