Tell us the account you want to use to open _vti_rpc.

Same issue here, I was worried it might be a virus. 

I hope MS fixes it soon since it's very annoying,

Thanks,

Marco

I found a solution - in settings, Office tab - uncheck the box Use Office 2016 to sync Office files that I open -worked for me.

Thanks. However, does this mean that files are no longer synced?

If that's the case, it might solve this issue but it's not a real solution if you need files to be synced, is it? While this issue is very annoying, since it is not harmful personally I prefer to continue having my Office files synced with all my PCs and the cloud.

Microsoft should really provide a solution very soon!

Thank you,

Marco

I am also nervous about not syncing, especially when the current work-around is as simple as "x-ing out" the box. However, I agree that it is frustrating that Microsoft is slow to respond. I have had two updates since the problem started. I sent feedback through Word tonight, but I am not confident that the team will read and respond.

Yeah, I am puzzled by the long times it takes to solve simple issues (introduced by Office updates!).

Same thing happened some time ago with the lag issue when writing mails in Outlook. It took ages to be solved. And that was more than annoying, it made Outlook useless for many users since it took you ages to compose a short email.

Regards,

Marco