How do I remove a corrupt Quartus II installation in Windows?

Description

There are various error messages that indicate a corrupt Quartus^® II installation, such as the following:

• Setup has experienced an error
• Error code: -5001
• >SetupDLL\SetupDLL.cpp(391)

Follow these steps to remove a corrupt Quartus II installation in Windows:

1. Open a system command prompt and run the following command: jtagserver --uninstall.
2. Find the instance GUID for the version of the Quartus II software that you are uninstalling. The instance GUID is the number in the <Quartus II Installation Directory\bin\instanceguid.txt file.
3. Delete the directory named C:\Program Files\InstallShield Installation Information\<instance GUID>. Note that the InstallShield Installation Information directory may be hidden, so you should configure your system to show all files.
4. Delete the Quartus II installation directory.
5. Open the Windows registry editor. For example, from the Start menu, choose Run, and type regedit.
6. Delete the registry entry HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Uninstall/<instance GUID>.

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