I was reading some threads in this forum and saw some that said people could not get emailed attachments to open directly into Word. This happened to me when I installed Word XP version on a computer running Windows 7.

I stumbled across the name of the program I found back then which restored the ability of document attachments to open directly in Word without first saving them to disk.

It is called DocFix and here is a link to it: Unable to Open .DOC Attachments from Windows Mail or Windows Live Mail >> Winhelponline

I hope this helps some members who are having this problem -- and I hope it does work in Windows 10. I have Win 7 so I can't check before posting this information. Perhaps someone will kindly check and then post whether it works for Windows 10.