If you know for sure that there’s nothing wrong with your computer or your Reader, then simply ask for another copy of the file. Try opening another PDF file to know if the one in question is damaged. Aside from that, if the file was transferred from a flash drive or website, it is possible that it has been damaged through transit.

On the other hand, it is possible that the file sent to you contains corrupted data. As such, you would not be able to open it using your PDF reader. If the PDF file was created using a malfunctioning program, then it can possibly arrive to you in a damaged form.

Method 3: Checking if the PDF file is damaged Restart your computer and check if the issue has been fixed.You can automatically update to the newer version by clicking Update.Click Help, then choose Check For Updates from the drop-down list.So, you have to ensure that your program has been updated to the latest version. Keep in mind that Adobe regularly releases updates or patches to fix bugs. Your old Adobe Reader or Acrobat might not be suitable to open newer PDF files. Method 2: Outdated Adobe Reader or Acrobat You will be asked if you want to continue with the changes.Under the Sandbox Protection options, uncheck the box beside “Enable Protected Mode at startup”.Once you’re inside the Edit menu, look for Preferences and click it.Type “Reader” (no quotes), then hit Enter.With that said, you can resolve the problem by following the steps below: Typically, the root cause of this issue can be traced from the settings of your Adobe Reader. You might not see an error message, but a busy icon shows up for a few seconds. When files in PDF don’t open in Windows 10, something must have gone wrong when you upgraded from Windows 7 or Windows 8. Method 1: Changing your Adobe Reader settings Installed Acrobat or Adobe Reader may be damaged.PDF files which have not been created using Adobe programs.Here are some of the factors that may prevent you from opening files in Adobe Reader or Acrobat:

On the other hand, PDF not opening in Windows 10 can also be caused by errors brought by an operating system upgrade. If you seem to have trouble opening PDF files on your Windows computer, it is likely that it has something to do with a recent Adobe Reader or Acrobat installation/update.

Basic adobe pdf viewer for windows 7