Ubuntu – How to install Adobe reader on Ubuntu 18.04.1?

Canonical put in an "interesting" feature in 10.04 which was intended to persuade "windows" users not to download random executables and run them. Perhaps understandable, but flawed, since it also prevented running executable from a read-only CD/ISO.

The capability is called the "cautious launcher".

There are a few ways to workaround this - you just need to be aware of the risks.

1. Copy the executables to your desktop. Right click on the .exe file, select Properties, select the Permissions tab and check "Allow executing file as program". You should now be able to run the executable
2. mount the cd/iso and run from the terminal wine /media/cd-name/windowsname.exe
3. Right click on the .exe file, select Open with other application, followed by Use a custom command and use wine for the command. For executables in the future - right click the exe and then select Open with wine.
4. remove the cautious-launcher permanently...

Edit the default launch command for wine

gksu gedit /usr/share/applications/wine.desktop

Change from

Exec=cautious-launcher %f wine start /unix

to

Exec=wine start /unix %f

_source

Steam Client for Linux was recently officially released for Ubuntu together with the original Half-Life family that includes Counter-Strike 1.6. There is no need to use Wine.

To install Steam, open Ubuntu Software Center and search for "steam".