Microsoft.com

gradie37 wrote:

I can’t sign into Microsoft, the app tells me that my address doesn’t exist. When I to add the app said that this address is registered.

What app are you having trouble with? Most likely you'll have to contact Microsoft as Skydiver wrote.

I’m really sorry you’re having an issue but you need to take it up with Microsoft. This is just a user to user tech support forum so none of us can assist you with that.

You're welcome- glad I could help.