Because the database connection is not up, so unload the database, and then install the problem error, the result is because of VS, so there is the uninstall vs this step. Some pictures to borrow.
1. Open the Control Panel in your computer-programs and features
2. Find the software to uninstall, but the uninstallation process is very slow, I spent nearly 1.5 hours. Right-click to make changes.
3. Then vs needs a response time, please wait patiently.
5. Then select the uninstall location here, you can skip the package directly. The uninstallation is then done directly.
6, here is getting the application that will be uninstalled, need to wait about one hours, please wait patiently.
7. If you click on the repair before you, here will also prompt to complete the success, you are uninstalled, need to delete the relevant software.
"Original" SQL Server---Uninstall visual Studio when installing