Confusion with Microsoft Login

[PeterOut]

I'm using my work email to log on to Office 365 from my laptop following an upgrade to Office 365.  As a separate issue, my laptop keeps asking me for a password for my personal Microsoft account (I think that this is for Microsoft Apps).  This account is linked to my personal email address.  There isn't an option to choose a different email address when I'm prompted to log on for this.  Is this going to be an issue?  If so, what could I do to correct it?

[#2]

Hi,

When are you prompted to log in for the personal account?

Is it in Outlook or where?

Make sure that you´re logged in to your work account in Office-applications -> File->Office Account and it shouldn´t be any issue with the connections for sharepoint, onedrive etc.

[#3]

It comes up on the sidebar.  It only pops up every few days.  "You need to sign in to your Microsoft Account .........".

[#4]

Which sidebar? In Windows 10?

Do you have MFA on your personal account?

If you go to settings(in windows)->Accounts-> Is it any issues with your account there?

[#5]

If you mean that you have a matching personal and work IDs, you should remove the alias from the personal account. This is no longer a supported/recommended scenarios as detailed here: https://support.microsoft.com/en-au/help/11545/microsoft-account-change-personal-email-address