I had to switch from Vista to Windows 10. When I start a new email and type the first part of the recipients name Windows 10 (I'm assuming) gives possible contacts/email addresses from both my gmail and zoho mail. 

I don't want this!

The beauty of having the two mail services wast the zoho mail was a stand alone from my gmail account. 

Now the few people I normally would send an email to from the zoho account are somewhere in a long list of possible addresses. Major hassle.

Where is the setting to turn this off?  With Vista I had bookmarked the zoho log in page to access the account. Is this what I should be doing?  Sorry for this simple question, I typically use MAC products now and have forgotten much my PC knowledge.  Windows 10 adds a whole new level of confusion!

thank you