To change your default PDF viewer in Windows 10, you can follow these steps:
Open the Settings app.
Select Apps.
Select Default apps.
Scroll down and select the app you want to use as your default PDF viewer.
Click on Set as default.

The default PDF viewer in Windows 10 is Microsoft Edge.

To change the default PDF viewer in Windows 10, you can follow these steps:
Open the Settings app.
Navigate to System > Default apps.
Scroll down and select the app you want to use as the default PDF viewer.
Click on Set as default.

There are a few ways to change your default system viewer. On Windows, you can right-click on an image and select “Open with” followed by “Choose another app”. You can also go to Control Panel > Default Programs and select “Associate a file type or protocol with a program”. On Mac, you can right-click on an image and select “Open with” followed by “More apps”.

There are a few ways to change the default application that is used to open a file. One way is to right-click on the file and select “Open With” and then select the application you want to use. Another way is to go to the “Default Programs” control panel and select the application you want to use from the list.

To change the default settings for an application, you can go to the System Preferences and select the application in question. There, you will be able to set it as your default application for that task.

System viewer is a default Mac app that opens when you press Command-Space. If you don’t want it to open, you can disable it in System Preferences > Keyboard > Shortcuts. Under “Open System Preferences” in the list on the left, select “System Preferences” and then deselect the checkbox next to “Show System Preferences.

To stop Safari from automatically downloading files, open the Safari Preferences and uncheck the “Open ‘safe’ files after downloading” box.

Windows 10 has a feature that automatically downloads new updates and installs them on your computer. This can be helpful, but it can also use up your data and slow down your computer. If you don’t want Windows 10 to automatically download updates, you can change the settings.
To stop automatic downloads in Windows 10, open the Settings app and go to Update & Security > Windows Update. Under “Advanced options,” turn off the “Automatic Downloads” setting.

There are a few ways to stop downloads from automatically opening. One way is to change your settings in your browser. In Chrome, you can go to Settings > Advanced > Downloads and uncheck “Open files automatically after downloading.”
Another way is to use an extension like Download Manager Tweak for Firefox. This extension will let you choose what to do with each type of file download (open, save, or ask).

On a Mac, open Finder and select “Preferences” from the menu bar. Under the “General” tab, uncheck the box next to “Open files after downloading.”
On Windows, open Firefox and select “Options” from the menu bar. Under the “General” tab, uncheck the box next to “Open files automatically.

There are a few ways to stop iTunes from opening automatically when you download something. One way is to change your default program for opening files. To do this, go to Control Panel > Default Programs and select a different program from the list to be your default.
Another way is to change the settings in iTunes so that it doesn’t automatically open when you download something. To do this, open iTunes and go to Preferences > General.

There are a few ways to stop iTunes from automatically playing on your Mac. One is to go to the iTunes preferences and uncheck the box that says “Open iTunes when this computer starts.” Another way is to create an Automator script that will prevent iTunes from opening automatically. To do this, open Automator and select “Application.

There are a few ways to stop iTunes from automatically opening on your Mac. One way is to disable the automatic launch in the System Preferences. Another way is to create a script that will prevent iTunes from opening.

There could be a few reasons why your iTunes keeps opening on your iPhone. One possibility is that you have an old version of the iTunes software on your phone that is trying to open automatically. Another possibility is that there is a conflict between the iTunes software and another app on your phone. If neither of those explanations seem to fit, then it’s possible that there is a problem with your phone’s settings that is causing iTunes to open automatically.