Something went wrong. [7q6ca]

I have had this issue as well and have done everything from uninstalling microsoft office, going into my oneauth files and identify files in app data and deleting them, updating Microsoft office, updating windows, restarting the computer, and to trying to call Microsoft. None has seemed to be working either. Yes I am able to access my information from the web but not any software on the computer. I at least now have the ability to login to OneDrive.

I resolved mine

I resolved mine by running System repair.

I noticed the error only happen on my desktop computer and not my laptop. After a troubleshoot session with Microsoft Tech Support they guided me to the right direction. I was planning to reinstall the whole thing, but before that I tried to do System repair and it resolved my issue. My computer is a Dell and I ran Dell SupportAssist > System Repair.

I also have the same problem. But all it said was "Something went Wrong" and then i was not able to log into my account anymore. I didn't get any kind of mail aswell and the support section was not helpful too. After a few days when I tried logging into that account, I was redirected to the signup page to create a new account. When I tried to make an account with the same mail, it worked but everything from the old account was lost and all the Xbox , minecraft achievements aswell. I am in desperate need of help right now and it was a big loss.

This did not fix the issue