Please try it
mkdir "C:\Users\Default\AppData\Local\Microsoft\Edge\User Data"type nul > "C:\Users\Default\AppData\Local\Microsoft\Edge\User Data\First Run"
`I can disable launch msedge on Windows 10 21H1.
Please try it
mkdir "C:\Users\Default\AppData\Local\Microsoft\Edge\User Data"
type nul > "C:\Users\Default\AppData\Local\Microsoft\Edge\User Data\First Run"
`I can disable launch msedge on Windows 10 21H1.