Missing User Account on Windows 10 - Microsoft Community

hi. words cannot describe how furious , frustrated am. when installed windows set local account used while before decided switch microsoft account. today decided switch local account. after signing out of microsoft account prompted set new local account. set new account can't see old local account login screen. when try create new account using old name told windows using already. can't see old account login , cannot recreate it. switched microsoft account files , settings cannot seen. when try access other local disks message "access denied". locked out of files. when check user profiles see old profile instead of size taken see question mark. have tried using cmd , regedit still have problem. losing files not option coz important , can't imagine not being able access them. please help! 

after signing out of microsoft account prompted set new local account.

-> recommend sign in microsoft account, create local admin account. account enables seize ownership of profile folder under c:\users, access files.

i have tried using cmd , regedit still have problem.

-> contrary popular belief, doing things under command prompt or in registry not around access restrictions.

losing files not option coz important , can't imagine not being able access them.

-> events these effective incentive people review backup philosophy. storing important files in single location strict no-no. must @ times stored on @ least 2 independent media, if because internal disk fail catastrophically @ time. 500 gbyte external disk in usb case costs less $500 , makes excellent backup medium.

Windows / Windows 10 / Security & privacy / PC