Disconnect Microsoft account from my local account

I was happily using local account on my Windows 8/8.1 machine. Was. Today I wanted to install some app from Windows Store. I wanted to assess some UX scenario in it. To do so I had to sign in using my Microsoft account. So I did.

Not only I signed into Windows Store, but Windows also quickly connected my local account with Microsoft's one and somehow changing it for an online one. I've realised that when I restarted my machine and I had to logon using my Microsoft account credentials rather than my previous local ones.

What I tried

I found on the net, that I can disconnect my Microsoft account from my user account. I followed these simple steps:

  1. Open Charms > Settings > Change PC Settings > Accounts > Your account > Disconnect
  2. Windows asked me for my current Microsoft account password (for obvious reasons) and I clicked Next
  3. It then asked me to provide local account credentials that I want to use from now on

My username was already pre-filled with my previous name (I'm not sure whether this has to do with previous local account username as it's the same as Display name on my Windows account). So I entered my local account password twice and my password hint as required and clicked Next.

Error

Windows is already using that name. Please enter a different user name.

Unavailable username

I've read on the net that if I did provide a different user name I'd end up with a new local account which is not what I want here as I don't want to loose all my account related data.

How should I revert to my local account without risking my profile data?

Should I try providing a new username and verify whether my old account's data is persisted or is that too much risk and I should take some other steps?


Simple enough process

First go to your account settings:

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Next click Disconnect enter image description here

Enter Your Password to your Microsoft Account: enter image description here

Create your local account: ( your old local account technically is still there so select a nw username ).

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Verify this process

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Proof is in the pudding: enter image description here

Source