ArcMap, ArcScene and everything works fine and opens without problem. But, ArcCatalog cannot open. A window pops up and says- Microsoft Visual C++ Runtime Library. Runtime Error! Program: C:\Program Files (x86)\ArcGIS\Bin\ArcCatalog. This application has requested the runtime to terminate it in an unusual way. Please contact the application's support team for more information. PLEASE HELP!
There are a number of suggestions offered here.
The one that I would try first is to rename your normal.gxt and ArcCatalog.gx files in \Documents and Settings\\Application Data (sometimes hidden)\ESRI\ArcCatalog.