Click on View, and select Show Hidden Items.

Type %appdata% in the Windows Start Search field and open the AppData folder.

You need to get rid of those file leftovers first. If you have old Signal data or folders left on your computer, you won’t be able to install a new Signal version. Specific Fixes for Windows Uninstall Old Signal Data

Launch Signal Desktop and click on the banner alert.

Replace USERNAME with your actual user name.Then launch the following command to force macOS to install Signal: sudo chown USERNAME ~/Library/Caches//*.Launch Terminal, and enter id -un to check your username.Specific Fixes for macOS Force Install Signal via Terminal If you’re using third-party antivirus or anti-malware solutions, temporarily disable the tools while installing Signal. To download and install new programs, you need to use an admin account. If you’re trying to install apps and programs using a guest profile, you won’t be able to do that. Make sure you’re running the latest OS version on your Mac or Windows computer. To install and use the Signal Desktop app, first, you need to install the app on your mobile device. Plug your iPhone into your computer and complete syncing your apps via iTunes. If the issue persists, switch to a wireless connection and check the results. Enable Airplane Mode, wait for 30 seconds, go back online and try to install Signal again. Install the latest iOS updates, restart your device, and try to install Signal again. Navigate to Settings, tap General and then select Software Update. What to Do If You Can’t Install Signal on iOS Select the G oogle Play Services, and tap Clear cache. Go to Settings, select Apps, and go to All Apps. Go to Settings, tap Storage, and select the option that says Clear junk files.

Wait for thirty seconds, log back in and try to install the app again. If you can’t install Signal using cellular data, connect to a trusted wireless network and check if the issue is gone.

Then, relaunch the Google Play Store app, and check if you can install Signal.

Install the latest Android OS updates and restart your terminal.

Go to Settings, tap System, and go to System Update.

Download signal app for mac