Error when starting Studio: "Service 'Sdl.TranslationStudio.AlignmentEditor.IAlignmentEditorService' could not be started"

Hi everyone!

When starting Studio 2019 I get this message:

"Service 'Sdl.TranslationStudio.AlignmentEditor.IAlignmentEditorService' could not be started".

I read the articles in SDL Support, tried to see if my antivirus was somehow blocking Studio but it was not, and to be sure I added the entire SDL folder among its exceptions.

Nothing changed!

So, as suggested, I tried to uninstall and reinstall Studio but when doing so it said:

Setup did not complete. The error is:

Setup has detected a different version of this product already installed.

If you still wish to remove or repair that version, you must use that version's installer.

The same goes if I try to repair it.

This means I'm completely stuck!

Could you please help?

Thanks in advance,

Marina