After you install Acrobat or Reader on Windows 7 or Vista, icons of all applications and file-types change to Acrobat/Reader icon. Double-clicking any icon or file launches Acrobat or Reader. (The native application associated to the file type doesn't open.)
Disclaimer: The registry contains system-related information that is critical to your computer and applications. Before modifying the registry, be sure to make a backup copy of it (Windows 7, Windows Vista). Adobe doesn't provide support for problems that can arise from improperly modifying the registry. Adobe strongly recommends that you have experience editing system files before you modify the registry. For information on the Windows Registry Editor, see the documentation for Windows or contact Microsoft Technical Support.
Apply the applicable registry fixes available at the following links:
Incorrectly displayed icons, icons of other files change to Reader icon, icons of other files change to Acrobat icon, corrupted file icons, corrupted icons, icons not working, icons of applications change, icons of files change, file icons change, application icons change; cpsid_86069
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