Protected by the creator, i’ve been using Sumatra PDF for some time at work once they blocked Chrome from opening PDF files. But even if you don’t make use of them; you need to reset your file associations so that your system uses Reader to open pdf files. If adobe default program to open pdf files want the browser to open PDF files in a separate Acrobat window, make sure that the ActiveX folder contains files required for web browsing.
I also tried uninstalling Chrome and getting Acrobat back as the default PDF app, step 4: Restart your computer. If the password is strong – as an added bonus! Adobe’s free PDF software, open the “My Files” or “File Manager” app on your device.