Preserve the transferred files, then check the original files on the old PC or backup for embedded album tags; if those originals still contain the tags, recopying them is the fastest and least destructive way to restore the albums.
Do not edit or delete the 7,000 transferred files yet. Make a backup copy first.
On both the new computer and—if available—the old computer or original backup:
- In File Explorer, right-click one representative song.
- Select Properties → Details.
- Check Album, Album artist, Contributing artists, Title, and Track number.
Then follow the matching case:
- The original file has album information, but the transferred copy does not:
Delete neither set yet. Copy a small test album again from the original source, using ordinary File Explorer copy/paste, and verify its Properties → Details values afterward. If they survive, replace the affected collection from that source.
- Both files contain correct tags, but WMP shows “Unknown album”:
The files are intact and WMP’s library database/index is the likely part that needs rebuilding. Rebuilding only the library will not recreate missing tags, so do this only after confirming the tags exist. A closely matching accepted Q&A answer warns that rescanning cannot restore metadata that was never embedded in the files.^1^
- The original files also have blank album fields:
The album information was probably available only through the former WMP library or its online lookup. If the old computer still works, preserve its entire music folder and WMP data before changing anything. Otherwise, the practical recovery method is bulk tagging rather than matching 7,000 tracks manually.
A music-tagging application that can identify groups of tracks from an online music database can write Album, Artist, Title, Track number, and artwork into the files themselves. The accepted guidance for a transferred WMP collection recommends this approach when the information is not embedded and cannot be recovered from the old library.^1^
Use a cautious workflow:
- Work on a duplicate of the music folder.
- Load one album-sized group into the tagging application.
- Run its automatic matching or metadata lookup.
- Review the proposed album, track order, and artist before saving.
- Confirm the new values under File Explorer → Properties → Details.
- Only then process larger batches.
- Re-add or rescan the corrected folder in WMP.
If filenames still contain useful values such as track number, artist, or song title, retain them—they can improve bulk matching.
3. Do not depend on “Find album info”
Microsoft’s current support page still describes right-click album → Find album info, including the privacy option under Organize → Options → Privacy.^2^ However, more recent Microsoft Q&A reports indicate that WMP Legacy’s online CD metadata lookup no longer retrieves track information reliably and has no supported restoration method.^3^
Therefore, reinstalling WMP, changing the privacy setting, or rebuilding its database should not be expected to repopulate thousands of missing albums from the Internet. The historical album-information feature depended on an online music-store service, rather than deriving an album directly from the audio itself.^4^
For future transfers, keep at least two backups of the actual music files and verify that their Details fields contain the metadata. Folder organization and a WMP library database alone are not durable substitutes for tags stored in the files.
References
- how to rebuild the windows media player legacy library - Microsoft Q&A
- Burn and rip CDs
- How do I rip a cd to computer to include the song titles on the cd? - Microsoft Q&A
- Album Info Integration | Microsoft Learn