About: Previous ProgramInstall a file that has been suspended on the computer before installing SQL Server, and then delete it. Now, "a previously installed program has created a suspended file on the installation computer. You must restart the computer before running the installer. Unable to proceed.
Please refer to the online materials to get it done. Steps:
1) Add/delete programs to completely delete SQL Server.
2) Delete the SQL Server Directory that has not been deleted.
3) Open the Registry Editor, find the pendingfilerenameoperations project in HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Session Manager, and delete it. In this way, you can clear the temporary installation project.
4) Delete the SQL Server-related keys in the registry.
In fact, it is estimated that only step 1 can be done, so that you can clear the installation of temporary projects. I did this by leaving for 1, 2, 4, and 3. Therefore, estimation 3 is the most critical.