When I install ArchiCAD, I get an error message: “some files such as GSRoot.dll, ArchiCAD.exe, etc.

When I install ArchiCAD, I get an error message: 'ArchiCAD Installer is damaged and can't be opened'.

I have downloaded ArchiCAD and obtained a serial number from MyArchiCAD, but it doesn't work.Can you send me a copy of my password without resetting it?.Please try copy and paste from the email sent to you.” when I confirm my account. It says “This code has been already used or has been misspelled.I have previously registered at '', but cannot login to MyArchiCAD with the same account detail.It says “Please enter a valid email address”.The following error appears on the registration page: “Somebody has already registered with this email address”.If you can't find the answer, please contact your partner or MyArchiCAD team to get a personalized solution to your problem.

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Archicad student version