I have installed SQL Developer (with JDK) on Windows first time,I facing the system error bellow when trying to execute it.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSyArW6HTFP00paq_XMQDdt-qwRWzUxPtwzuKN-C2xFVRi8mJD0AX-5cbCf3elXUx0hyphenhyphensOcYKq5eg0ftN8GQzG5KGodCsrNPass4JORK6aQKVxV7a9nY5YUruJxoK9DgD5ktZOwkjAoSE/s320/error_sqldeveloper.png)
- Run regedit (remember to run it as the administrator)
- Expand HKEY_LOCAL_MACHINE
- Expand SOFTWARE
- Expand Microsoft
- Expand Windows
- Expand CurrentVersion
- Expand App Paths
- At App Paths, add a new KEY called sqldeveloper.exe
- Expand sqldeveloper.exe
- Modify the (DEFAULT) value to the full pathway to the sqldeveloper executable (See example below step 11)
- Create a new STRING VALUE called Path and set it value to the sqldeveloper pathway + \jdk\jre\bin