Today I came across a problem with Visual Studio 2008 installation program. The following error occurred when I tried to add/remove Visual Studio components via control panel:
A selected drive is no longer valid
This error occurs after installation of Visual Studio 2008 SP1 (Service Pack 1), so you can no longer add or remove components of the install.
In order to fix this error, you have two choices:
1. Uninstall SP1 via control panel, add necessary components to non-SP install, then apply SP1 again.
2. Locate and install required component manually. I was looking to add SQL Server Express Edition to my install. I found it at “\WCU\SSE\SQLEXPR.EXE” in Visual Studio 2008 installation folder (unpacked .ISO). This should work for other components accordingly.