When you try to install Adobe Acrobat or Adobe Reader in Windows Vista, you receive an error message that resembles one of the following. The feature you are trying to use is on a network resource that is unavailable.

You might notice that the Adobe Acrobat tab doesn't appear in your Office 2016 applications, such as Word or Excel, when you know that you have Adobe Acrobat installed. To get the Adobe Acrobat tab to appear, first make sure that you have the latest version of Office 2016 and that your version of Adobe Acrobat is compatible with it.

First, you'll need to download the troubleshooter. Download troubleshooter. If you see the File Download box when you start downloading, select Run or Open. The troubleshooter provides steps for you to follow. If a program isn't listed in the uninstall options, you'll be asked for that program's product code.

Fixes an issue in which a 64-bit application that hosts a WebBrowser control cannot load a 32-bit ActiveX control. This issue occurs when Internet Explorer 10 or Internet Explorer 11 is installed and used on the computer.

When you open an Office 2016 application, the Adobe Acrobat tab may be missing even though the add-in is available. Before you try any of the steps below, ensure your version of Adobe Acrobat is compatible with Office 2016. You should also install the latest updates for Office 2016.

How to obtain and install the update. Method 1: Windows Update. This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.

Resolves a vulnerability in Windows that could allow remote code execution.

How do I open a file? If you try to open a PDF, XPS, or TIFF file, it usually opens in Reader automatically. If that doesn't happen, you can set Reader as the default app for those types of files. (We'll show you how to do that in the next section.)

Learn how to switch out of S mode to install apps from outside of the Microsoft Store or to upgrade to Windows 11.

Resolves a vulnerability in Windows that could allow remote code execution.