Hello, I have a win7 64 bit, using Acrobat XI Standard. I am trying to view pdf files from windows explorer. I am able to get a preview of jpg and other formats just not pdf. I have set acrobat to be default previewer from the preferences page in adobe. I uninstalled reader XI. Changed view in explorer to large icons still will not show preview of pdf files. Have to open each one. Any help you may offer would be great!