If you are experiencing problems with your installation, you can use the Repair option, which automatically searches for and replaces missing or corrupted files.
To repair an installation with the Reflection Setup program user interface
From an administrative installation image, click the setup.exe file.
Click Repair, and then follow the installer instructions.
To repair an installation using Windows Add/Remove
From the Windows Programs and Features (or the Add or Remove Programs) control panel, select the name of the installation that you want to repair, and then click Change.
From the Reflection Setup program, select Repair, and then click Continue.