Verify that the source exists and that you can access it. Verify that the patch package exists and that you can access it.Or, contact the application vendor to verify that it is a valid Windows Installer patch package.
After receiving your Adobe Reader DC Update 2018.009.20044 last week, we have heavy problems with some PDF-Files.When you open some PDF-files, generated for example with Amyuni PDF Converter, there will be not shown the correct fonts. If you then restart the Computer and open these PDF-files you will see another Fonts (Wingdings?) and when you wait some seconds then the correct fonts will be loaded and displayed. During the day suddenly these PDF-files are displayed with incorrect fonts.If you cannot resolve the problem after using the Fix it wizard, see the solutions in Error 1606 | Install | Acrobat 8, 9 | CS4.The installation source for this product is not available.