I see similar problems in this community, but no solution that works.

Several days ago, the contacts on my windows 7 phone just disappeared. I can see all of my contacts in my outlook program on my PC and I can see all of them on my Live.com account when I login online on my computer. I made NO changes , downloads or updates to anything...phone, computer or live.com account.

Just to test what was happening...I added a new contact on my phone and it synced up and showed up on my live.com account on my computer and in my outlook program. However, I tried adding a contact via my live.com account on my computer, and it would NOT sync down to my phone.

After many syncs, that test contact that I added via my phone has also disappeared from my phone...but I can see still it on my computer via my outlook program or by signing into my live account on my computer.

Can someone at Microsoft Support fix my live .com account?