Dism Error 87 Fixed — Link

Here’s a concise and clear guide to fixing DISM Error 87 (which usually means an invalid parameter in the command syntax):

He typed diskpart, then list volume. He saw the main partition. It was labeled D: tonight. dism error 87 fixed

  1. Ensure Windows Update/service access (for /RestoreHealth without /Source)

6. Scan for Corruption Without RestoreHealth First

If you still get error 87, try a simpler DISM command to verify DISM itself works: Here’s a concise and clear guide to fixing

Conclusion

If that works, the problem is likely in your longer command’s syntax, not DISM itself. not DISM itself.