However, this default setting makes it difficult to open multiple PDF files in separate windows. You can change this setting within Acrobat and force PDF documents to open in new windows.

With Windows 10/8/7, you can use IE 11. Well, some users have reported facing a problem that, whenever they try to download and open a PDF file, Internet Explorer will not open PDF files.

As such, it could open a PDF file as long as the %PDF-header started within the first 1024 bytes of the file. There’s, however, a change in the scheme of things now.