Arduino IDE installation awt.dll error

The objective of this short post is to explain how to solve the error opening the awt.dll file, during the installation of the Arduino IDE.

A common error that occurs when installing a new version of the Arduino IDE after uninstalling a previous one is shown below, in figure 1. The error message says that an error occurred  opening a awt.dll file for writing.

Although it is possible to ignore it and follow the installation, when we try to launch the IDE it won’t work.

Arduino awt.dll error.png

Figure 1 – Awt.dll error message.

The solution for this is very simple. If this error appears,  we should abort the current installation  and then restart our computer. After that, the installation should work without any problem.


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