Change check solution when installing SQL Server

Microsoft is like this. If you install a later version and then install an earlier version, the problem may occur.

I installed vs08 first and then SQL server05. The problem arises. A warning is generated during the installation process,Version change check

I checked it online and found three solutions:

No1

Uninstall vs08 and then Install SQL server05. This method is too large to work properly.

NO2

Uninstall all the items in the Registry SQL server05 and then Install SQL server05. This method seems better, but it is still a little troublesome.

NO3

This method is the easiest. Open the Command Prompt window.

Switch to the installationProgramRun setup.exe skuupgrade = 1 in the root directory to install it ·~~~ This method is simple.