I cannot start SQL Assistant, and the error message is:
We have faced same issue many times and re installation helped us to fix the issue. I am not sure about the cause of issu.
Write click on My documents folder > go to Properties > General tab > Clear check box for READ ONLY > click apply and OK > try to restart SQL assistant
If this still isn't fixed email me at mike.dempsey@Teradata.com.
It is actually a problem with your Windows setup rather than with SQL Assistant, but it is simply a matter of updating your registry to correct the pointer to 'My Documents'. (You will need admin rights to do it so you should probably contact your IT support folks.)
I received the same error and tried the registry redirection and it works! Checking the Read Only box does nothing for me.
Here is the reference link to redirecting your registry (essentially just change the HKEY_CURRENT_USER references):