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In Windows 10 / 8, you often need to use your Microsoft account instead of a local account, for example, when using the Windows Store. To do this, you must switch from the local account to the Microsoft account (16). For some, it’s fine, for others, it becomes a problem. Suppose you upgraded a system from Windows 8 to Windows 8.1 or finally to Windows 10 using Microsoft account on your system. The following errors may occur after the upgrade:
We are sorry, but something went wrong. Your account has not been replaced by this Microsoft account. Code : 0x80070426
If you get this error, restart first. Other things you can try here to set up a new user account and switch to Microsoft account. However, if you do not want to create a new user account and then go to Microsoft Account, you can follow these steps. We recommend that you create one system restore point before continuing.
Your account has not changed to this Microsoft account
1 Press the Windows key + R combination, type regedit in the Run dialog box and press Enter to open the registry editor.
3 The result will come around these two registry keys :
I showed an entry in the image below. There would only be one key with that long name for which the e-mail ID you entered in the Find field would match, so as not to be confused at all.
4 After finding the two registry keys mentioned above, export them to a suitable location, then delete them 12). Close the registry editor and restart the machine to solve the problem.
Your problem should be solved.