Since Lightroom Classic works in the new Windows account, the old profile is likely corrupted. The supported fix is to keep using the new account and manually copy data from the old profile.
- Sign in to the new account.
- Open File Explorer.
- Go to
C:\Users\<Old_Username>. - Copy the folders and files needed from the old profile.
- Go to
C:\Users\<New_Username>. - Paste the copied files into the matching folders in the new profile.
Typical folders to copy:
- Documents
- Pictures
- Videos
- Music
- Desktop
- Downloads
- Any custom folders created under the old profile
Important:
- Do not change File Explorer settings to show hidden files and folders or protected operating system files.
- Some apps may need to be reconfigured or reinstalled in the new account.
- Email messages in desktop mail apps must be imported separately.
- If Microsoft Store apps were used before, sign in to those apps again in the new account.
- If the new account was created as a local account, change it to a Microsoft account after the file copy.
- Restart the PC after the copy, then sign in to the new account and verify the files are available.
Programs themselves are not transferred by copying the profile folders. Personal files and standard user folders can be moved this way.
References: