You may need to choose "Sign in with another account" to proceed.
You can also find installation steps here: For the latest version of Office, see Install Office on your PC or Mac.
For Office 2013 or Office for Mac 2011, see Reinstall Office 2013 on a PC or Reinstall Office for Mac 2011.
In addition, with Office for business plans only admins responsible for managing Office 365 in their organization can do certain tasks.
Therefore, admins should view the issues and solutions listed under both the Office for business and Office 365 Admin tabs.
If Office still won't install, check that your computer meets the system requirements to install Office.
For example, you can't install Office on computers running Windows XP, Windows Vista, or Chromebooks.
When Microsoft Word 2013 refuses to spell check it’s usually because it’s been disabled for the selected language in the particular document.
Some templates have this option enabled by design to hide the red or green underlines for words that aren’t in the default dictionary.
See Why don't I see subscription features on my Mac?
for directions on how to check which license you're using and how to reactivate.
Office 365 subscriptions: These include the fully installed Office applications.