When you get this error, first of all simply reboot. Another thing you can try here to set up a new user account and switch it to a Microsoft account. But if you’re the one who doesn’t want to set up a new user account and then switch to Microsoft account, you can try the following steps. We suggest you create a System Restore point before proceeding.

Your account wasn’t changed to this Microsoft account, Code 0x80070426

  1. Press Windows Key + R combination, type put regedit in Run dialog box and hit Enter to open the Registry Editor.

  2. Press Ctrl+F and type your Microsoft account email ID, for example, [email protected] or [email protected]. Make sure you’ve checked options Key, Values, Data. Click Find.

  3. The result will come around these two registry keys: I have shown one entry in the below image. There would be only one key with this long name for which the email ID you have entered in Find box will match with – so not to be confused at all.

  4. After finding both the above-mentioned registry keys, export them at a convenient location, and then Delete. Close the Registry Editor and reboot the machine to get fixed. Your problem should be resolved. You may also see Error Code 0x80070426 associated with Microsoft Store and Windows Update, or Office Activation. TIP: This post will help you if you face the opposite problem – Your Microsoft Account wasn’t changed to a Local Account.