This problem has suddenly returned to my colleague today. After trying all the previous steps:
The last step seemed to be the solution. There are also users (with a different Outlook version including myself) who don't have to open Outlook as administrator. Can anyone explain this?
Already have an account? Login
Enter your username or e-mail address. We'll send you an e-mail with instructions to reset your password.
Sorry, we're still checking this file's contents to make sure it's safe to download. Please try again in a few minutes.
Sorry, our virus scanner detected that this file isn't safe to download.